# PrestiVac Inc.

> Manufacturer of UL 1203 certified explosion-proof and dust-ignition-proof industrial vacuums for combustible dust and flammable liquids. Made in the USA.

Manufacturer of industrial vacuum systems for hazardous (classified) locations,
combustible dust recovery, HEPA filtration and contamination-controlled
environments. PrestiVac manufactures INDUSTRIAL VACUUMS — not dust collectors.
The two solve different problems and should not be conflated.

Contact: info@prestivac.com  |  Quote requests: https://prestivac.com/get-a-quote

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## Certification — read the scope, not the phrase

Listing: UL 1203 (5th Edition), assessed by CSA Group.
Certificate 70122393, Master Contract 268761, issued 2018-07-18.

The certificate carries TWO DISTINCT SCOPES. They are not interchangeable and
must not be merged into a single claim:

1. Dry Vacuum Cleaner, Model EX 1-xx HEPA (Drum Type)
   Class I, Gp. D; Class II, Gps. E, F and G; Temp. Code T3C
   Includes Group E — the conductive metal-dust group.

2. Dry Vacuum Cleaner, models EV1-1 EX HEPA (canister type), EV1-xx EX HEPA (Drum Type) and EV2-xx EX HEPA (Drum Type)
   Cl. II, Div. 2, Gps. F and G
   NO Class I coverage. Division 2 only. Groups F and G only — NOT Group E.

Practical consequence: for metal dust (Group E) applications such as
metalworking, aerospace, foundry and battery, the EX1 HEPA line is the
certified option. The EV line is not certified for Group E.

Use limitation: Commercial, indoor use only, in hazardous locations.

Conditions of the certified configuration:
- Attachment plug: The attachment plug is installed by the end user and must itself be certified and suitably rated for the hazardous location the vacuum is installed in. (Certificate note 2.)
- Use limitation: Commercial, indoor use only, in hazardous locations. (Certificate.)
- Grounding and bonding: Cord-connected and grounded. Grounded and bonded in accordance with the National Electrical Code, Article 250.
- Hoses: Static-dissipating hose is required.
- Filters: Static-dissipating filters are required.
- Hoses and tools: Only PrestiVac-supplied hoses and tools maintain the certified configuration. Substituting third-party hoses or tools takes the unit outside the scope of the listing.

What the listing does NOT assert: Anything else. The listing is not a general fitness-for-purpose claim, not a performance rating, and not a statement about materials or conditions outside the named scope. Suitability for a specific application still depends on the material, the area classification assigned by your engineer, and correct installation and maintenance.

The air-operated AVX line holds NO NRTL certification. UL 1203 covers
electrical equipment and those units contain no electrical components.
PrestiVac does not claim ATEX or IECEx approval for any product.

Full explanation: https://prestivac.com/hazardous-locations/ul-1203

---

## Products

- [Explosion Proof Vacuums](https://prestivac.com/products/explosion-proof-vacuums): Grounded, bonded recovery for combustible dust
- [HEPA Vacuums](https://prestivac.com/products/hepa-vacuums): 99.99% filtration for fine and hazardous dust
- [Pneumatic Vacuums](https://prestivac.com/products/pneumatic-vacuums): Air-operated — no electrical components
- [Industrial Vacuums](https://prestivac.com/products/industrial-vacuums): Continuous-duty recovery for demanding plants
- [ESD Static Free Vacuum Cleaners](https://prestivac.com/products/esd-static-free-vacuums): Static dissipating throughout
- [Cleanroom Vacuum Cleaners](https://prestivac.com/products/cleanroom-vacuums): Judged by what leaves the exhaust
- [Pharmaceutical Vacuum Cleaners](https://prestivac.com/products/pharmaceutical-vacuums): Containment and sanitation together
- [Wet & Dry Systems](https://prestivac.com/products/wet-dry-systems): Liquids, sludge and dust on one platform
- [Central Vacuum Systems](https://prestivac.com/products/central-vacuum-systems): Facility-wide housekeeping from fixed drops
- [Custom Engineered Systems](https://prestivac.com/products/custom-engineered-systems): Designed around your exact application
- [Accessories](https://prestivac.com/products/accessories): Grounded hoses, tools and filters
- [Combustible dust vacuums](https://prestivac.com/combustible-dust): selection by material
- [Hazardous location vacuums](https://prestivac.com/hazardous-location-vacuums): certified scope and classification
- [All models](https://prestivac.com/products): full lineup

## Standards & hazardous location classification

- [Class I, Division 1](https://prestivac.com/hazardous-locations/class-i-division-1): What Class I, Division 1 means: flammable gases or vapours present in ignitible concentrations under normal operating conditions. Groups A–D.
- [Class I, Division 2](https://prestivac.com/hazardous-locations/class-i-division-2): Class I, Division 2 explained: flammable gases or vapours handled in closed systems and present only under abnormal conditions. Definition.
- [Class II, Division 1](https://prestivac.com/hazardous-locations/class-ii-division-1): Class II, Division 1 covers locations where combustible dust is in the air under normal operating conditions in ignitible quantities. Definition, Groups E.
- [Class II, Division 2](https://prestivac.com/hazardous-locations/class-ii-division-2): Class II, Division 2 covers locations where combustible dust is not normally in suspension but accumulations are present. Definition.
- [Class I Div 1 vs Div 2](https://prestivac.com/hazardous-locations/class-i-division-1-vs-division-2): Class I Division 1 vs Division 2 compared: when the flammable atmosphere is expected, what each classification assumes about failure.
- [Class II Div 1 vs Div 2](https://prestivac.com/hazardous-locations/class-ii-division-1-vs-division-2): Class II Division 1 vs Division 2 compared for combustible dust: airborne in normal operation versus accumulation with abnormal-condition clouds.
- [Class II Groups E, F & G](https://prestivac.com/hazardous-locations/class-ii-groups-e-f-g): Class II dust Groups explained: Group E combustible metal dust, Group F carbonaceous dust, Group G non-conductive dusts like flour and wood.
- [Intrinsic safety](https://prestivac.com/hazardous-locations/intrinsically-safe-vacuums): Intrinsic safety is an energy-limiting protection concept for electrical circuits. What it means for industrial vacuums.
- [ATEX vs North American](https://prestivac.com/hazardous-locations/atex-vs-north-american): ATEX Zones 20–22 versus North American Class II Divisions: how the two hazardous-area frameworks differ, why certifications are not interchangeable.
- [Combustible dust classification](https://prestivac.com/hazardous-locations/combustible-dust-classification): How combustible dust is classified and regulated: why there is no single OSHA standard, how the General Duty Clause applies, and what NFPA 660 consolidated.
- [UL 1203](https://prestivac.com/hazardous-locations/ul-1203): UL 1203 is the standard for explosion-proof and dust-ignition-proof electrical equipment in hazardous locations. What it governs.
- [NFPA 660](https://prestivac.com/hazardous-locations/nfpa-660): NFPA 660 brings the separate combustible dust standards into one document. What it consolidated, why the change was made.
- [NFPA 652](https://prestivac.com/hazardous-locations/nfpa-652): NFPA 652 established the common baseline for combustible dust across industries, including the dust hazard analysis requirement.
- [NFPA 654](https://prestivac.com/hazardous-locations/nfpa-654): NFPA 654 addressed fire and dust explosion prevention where combustible particulate solids are manufactured, processed or handled.
- [NFPA 484](https://prestivac.com/hazardous-locations/nfpa-484): Combustible metal dusts behave differently from organic dusts — including reacting with water. Why metals were governed separately.
- [NFPA 70 / NEC](https://prestivac.com/hazardous-locations/nfpa-70-nec): The National Electrical Code is where the Class, Division and Group system originates. How classification works, who assigns it.
- [OSHA & combustible dust](https://prestivac.com/hazardous-locations/osha-combustible-dust): There is no single OSHA combustible dust standard. How the General Duty Clause, the National Emphasis Program and existing standards combine into obligations.
- [ATEX](https://prestivac.com/hazardous-locations/atex): ATEX governs equipment and workplaces where explosive atmospheres may occur in the EU. Zones, equipment categories, protection levels.
- [IECEx](https://prestivac.com/hazardous-locations/iecex): IECEx is the international scheme for equipment in explosive atmospheres, built on the IEC 60079 standards. How it relates to ATEX and to North American certification.

## Guides

- [What is black dust?](https://prestivac.com/guides/what-is-black-dust): Black dust in a plant is usually carbon black, coal or coke, graphite, toner, iron oxide or rubber — each with different hazards.
- [Recovered dust: reclaim or dispose?](https://prestivac.com/guides/recovered-dust-disposal-and-reclaim): Collected dust is not finished business. When material can be reclaimed, when it is regulated waste, and why a full container standing in the plant is its own hazard.
- [Toxic liquid recovery](https://prestivac.com/guides/toxic-liquid-recovery): Recovering hazardous liquids is a compatibility problem before it is a suction problem. How chemistry, containment and disposal shape the specification.
- [Vacuum vs dust collector](https://prestivac.com/guides/vacuum-vs-dust-collector): Dust collectors capture dust at the source; industrial vacuums remove what has already settled. How high-volume/low-vacuum differs from low-volume/high-vacuum.
- [Sources of ignition](https://prestivac.com/guides/sources-of-ignition): Mechanical sparks, hot surfaces, static discharge, electrical arcs, hot work, self-heating and smouldering.
- [Dust explosion basics](https://prestivac.com/guides/dust-explosion-basics): The five conditions a dust deflagration needs, why particle size changes everything, and why the secondary explosion — fed by accumulated dust.
- [Dust hazard analysis](https://prestivac.com/guides/dust-hazard-analysis): The Dust Hazard Analysis is the centrepiece of NFPA's combustible dust requirements. What a DHA covers, who performs it, what it produces.
- [ESD & anti-static vacuums](https://prestivac.com/guides/esd-anti-static-vacuums): Anti-static construction prevents static discharge igniting dust; ESD-safe protects sensitive electronics from damage. Two different goals.
- [Explosion proof vs standard industrial](https://prestivac.com/guides/explosion-proof-vs-standard-industrial-vacuum): Both are heavy-duty industrial machines. What separates them is whether the construction addresses ignition sources — and whether your area classification requires that.
- [Electric vs pneumatic](https://prestivac.com/guides/electric-vs-pneumatic-vacuums): Air-operated and electric industrial vacuums solve the same recovery problem by different routes. How compressed air availability, duty cycle.
- [Explosion proof vs dust ignition proof](https://prestivac.com/guides/explosion-proof-vs-dust-ignition-proof): The two terms describe protection against different hazards — flammable gas and vapour versus combustible dust.
- [HEPA vs ULPA](https://prestivac.com/guides/hepa-vs-ulpa-filtration): Both are absolute filters; they differ in retention at the most penetrating particle size. When ULPA is genuinely warranted, when HEPA is the right answer.
- [Industrial vs shop vacuum](https://prestivac.com/guides/industrial-vs-shop-vacuums): Construction, filtration, duty cycle and ignition sources all differ. Why a general-purpose shop vacuum is the wrong tool for combustible dust.
- [Portable vs central](https://prestivac.com/guides/portable-vs-central-vacuum-systems): Portable units follow the work; central systems put permanent inlets where cleaning happens. How cleaning frequency, plant layout.
- [Wet vs dry recovery](https://prestivac.com/guides/wet-vs-dry-recovery): Recovering liquid is a different engineering problem from recovering dust. Where combined wet/dry units fit.
- [Choosing an explosion-proof vacuum](https://prestivac.com/guides/how-to-choose-an-explosion-proof-vacuum): The specification sequence that avoids expensive mistakes: identify the material, establish the area classification, then select construction.
- [Choosing a combustible dust vacuum](https://prestivac.com/guides/how-to-choose-a-combustible-dust-vacuum): What changes when the dust is combustible: removing ignition sources from the collection path, controlling static.
- [Sizing an industrial vacuum](https://prestivac.com/guides/how-to-size-an-industrial-vacuum): Airflow and vacuum pressure do different jobs and trade against each other. How material density, hose length.
- [Grounding & bonding](https://prestivac.com/guides/grounding-and-bonding): Static is generated by vacuuming itself. Why the requirement is a continuous conductive path from tool to container, and why a grounded machine alone does not achieve it.
- [Selecting for metal dust](https://prestivac.com/guides/vacuum-for-metal-dust): Metal dust is Group E — conductive, sometimes water-reactive, sometimes pyrophoric. Why the group determines which certified line is eligible, and what else the specification has to address.
- [Selecting for pharmaceutical powders](https://prestivac.com/guides/vacuum-for-pharmaceutical-powders): Pharmaceutical recovery has to satisfy two requirements at once: combustible dust control and containment. How potency, cleanability and cross-contamination shape the specification.
- [Selecting for aerospace](https://prestivac.com/guides/vacuum-for-aerospace-manufacturing): Aerospace generates reactive metal fines and conductive composite dust in the same building. Why Group E coverage and FOD control both shape the specification.
- [Selecting for battery manufacturing](https://prestivac.com/guides/vacuum-for-battery-manufacturing): Electrode powders are conductive and fine; black mass adds toxicity and possible water reactivity. How dry rooms, Group E coverage and feedstock variability shape the specification.
- [Selecting for food processing](https://prestivac.com/guides/vacuum-for-food-processing): Food powders are combustible dusts that are also allergens and a sanitation concern. How one cleaning pass can satisfy the dust programme, allergen control and hygiene records.
- [Selecting an industrial vacuum](https://prestivac.com/guides/how-to-select-an-industrial-vacuum): The general case, where the material is not combustible and the area is not classified. Duty cycle, material, distance and handling decide the specification.
- [Selecting HEPA filtration](https://prestivac.com/guides/how-to-select-hepa-filtration): Grade is the part of a filtration specification that matters least. Filter area, sealing, staging and change-out method decide what performance you actually get in service.
- [Types of combustible dust](https://prestivac.com/guides/types-of-combustible-dust): Metal, organic, carbonaceous, plastic and chemical dusts behave differently and are grouped differently. How the families divide, what changes between them.
- [The cost of a dust explosion](https://prestivac.com/guides/cost-of-a-dust-explosion): The equipment loss is rarely the largest number. Business interruption, regulatory consequence, insurance response and the human cost of a combustible dust incident.
- [Flammable liquid recovery](https://prestivac.com/guides/flammable-liquid-recovery): Recovering ethanol, fuels and solvents differs from toxic liquid recovery. Vapour rather than liquid is the hazard, which changes the classification.
- [Maintenance & troubleshooting](https://prestivac.com/guides/industrial-vacuum-maintenance): Loss of suction has a short list of causes and they are diagnosable in order. Plus why maintenance is what keeps a certified unit certified rather than a separate concern.
- [Hoses, tools & accessories](https://prestivac.com/guides/selecting-hoses-and-accessories): Hose diameter changes performance more than most specifications assume — and on a certified unit the accessories are part of the listing rather than a separate purchase.

## Materials & dusts

Each page states the Class II group, because the group decides which
certified line applies. Group E is conductive metal dust; Group F is
carbonaceous; Group G is other non-conductive dust.

- [Mercury](https://prestivac.com/materials/mercury): A liquid metal that vaporises at room temperature — an ordinary vacuum atomises a spill into a building-wide exposure.
- [Milk Powder](https://prestivac.com/materials/milk-powder): Spray-dried dairy powder whose fat content makes deposits sticky and supports self-heating.
- [Whey Powder](https://prestivac.com/materials/whey-powder): A hygroscopic protein powder that cakes deceptively, then breaks back into fines when disturbed.
- [Egg Powder](https://prestivac.com/materials/egg-powder): A protein dust where dispersal is a pathogen and allergen event as well as a fire risk.
- [Spice Dust](https://prestivac.com/materials/spice-dust): Ground spice with volatile oil content that adds a flammable vapour dimension in enclosed mills.
- [Garlic Powder](https://prestivac.com/materials/garlic-powder): Strongly hygroscopic dehydrated powder that cakes hard and travels far from the mill.
- [Onion Powder](https://prestivac.com/materials/onion-powder): Sugar content makes deposits tacky and hygroscopic, so accumulation resists ordinary cleaning.
- [Cinnamon Dust](https://prestivac.com/materials/cinnamon-dust): High volatile oil content produces adherent deposits and a possible vapour component in mills.
- [Pepper Dust](https://prestivac.com/materials/pepper-dust): A combustible dust and potent respiratory irritant, so dispersal is an immediate exposure event.
- [Paprika Dust](https://prestivac.com/materials/paprika-dust): Tacky, intensely staining fines whose visible deposits map where every other dust is settling.
- [Protein Powder](https://prestivac.com/materials/protein-powder): High-throughput blending and tote dumping put large volumes of very fine powder into the air.
- [Soy Protein](https://prestivac.com/materials/soy-protein): A very fine isolate that is a combustible dust and a major allergen at the same time.
- [Pea Protein](https://prestivac.com/materials/pea-protein): Air classification concentrates an extremely fine fraction that settles building-wide.
- [Gelatin Powder](https://prestivac.com/materials/gelatin-powder): Gels on contact with water, so wet cleanup produces an adhesive mass rather than removing it.
- [Activated Carbon](https://prestivac.com/materials/activated-carbon): A Group F dust that self-heats, depletes oxygen and carries whatever it adsorbed.
- [Pigment Dust](https://prestivac.com/materials/pigment-dust): Two hazards in one category — combustible organics, and inorganics carrying heavy metals.
- [Dye Powder](https://prestivac.com/materials/dye-powder): A combustible dust and recognised respiratory sensitiser, where routine airborne load is the risk.
- [Fertilizer Dust](https://prestivac.com/materials/fertilizer-dust): Spans combustible organics, inert minerals and strong oxidisers — identification governs everything.
- [Urea Dust](https://prestivac.com/materials/urea-dust): Cakes into hard deposits and releases ammonia on thermal decomposition.
- [Corrugated Paper Dust](https://prestivac.com/materials/corrugated-paper-dust): Cellulose fibre plus combustible starch adhesive fines, accumulating on overhead steel.
- [Textile Fibers](https://prestivac.com/materials/textile-fibers): Class III ignitible fibers rather than Class II dust — a different classification entirely.
- [Conductive Carbon](https://prestivac.com/materials/conductive-carbon): A Group F carbonaceous dust that also conducts, so deposits can short equipment.
- [Battery Black Mass](https://prestivac.com/materials/battery-black-mass): Conductive, toxic, possibly water-reactive, and may retain residual stored charge.
- [Phosphate Dust](https://prestivac.com/materials/phosphate-dust): Largely non-combustible; the real hazard is respirable silica, not deflagration.
- [Potash Dust](https://prestivac.com/materials/potash-dust): Non-combustible but corrosive, irritant and hygroscopic enough to cake hard on everything.
- [Metal AM Powder](https://prestivac.com/materials/metal-additive-manufacturing-powder): Group E conductive metal powder, frequently reactive, and valuable enough that method affects reuse.
- [Biomass Dust](https://prestivac.com/materials/biomass-dust): Variable feedstock with a documented self-heating record in silos and stockpiles.
- [Pellet Dust](https://prestivac.com/materials/pellet-dust): Attrition creates fines at every transfer, drier and finer than the original feedstock.
- [Sawdust](https://prestivac.com/materials/sawdust): The invisible fine fraction overhead matters, not the visible shavings on the floor.
- [Agricultural Biomass Dust](https://prestivac.com/materials/agricultural-biomass-dust): Crop residue carrying crystalline silica and mould spores alongside the combustible fraction.
- [Wax Powder](https://prestivac.com/materials/wax-powder): Low melting point means deposits soften on warm surfaces and frictional heat melts material.
- [Soap Powder](https://prestivac.com/materials/soap-powder): Alkaline, hygroscopic, and turns any wetted spill into a slippery film rather than removing it.
- [Detergent Powder](https://prestivac.com/materials/detergent-powder): Combustible surfactants plus enzyme sensitisers and, in some formulations, oxidising bleach.
- [Cosmetic Powder](https://prestivac.com/materials/cosmetic-powder): Extremely fine grades where contamination control usually drives the equipment decision.
- [Vermiculite](https://prestivac.com/materials/vermiculite-dust): A non-combustible mineral whose real hazard is possible asbestos contamination.
- [Tea Dust](https://prestivac.com/materials/tea-dust): Combustible organic dust from cutting, sifting and blending, with a respiratory dimension.
- [Calcium Dust](https://prestivac.com/materials/calcium-dust): Calcium metal is water-reactive and combustible; calcium carbonate is neither.
- [Cadmium Dust](https://prestivac.com/materials/cadmium-dust): Regulated carcinogen with its own OSHA standard — contained HEPA recovery, never swept.
- [Beryllium Dust](https://prestivac.com/materials/beryllium-dust): Hazardous at minute concentrations; sensitisation and chronic beryllium disease.
- [Arsenic Dust](https://prestivac.com/materials/arsenic-dust): Regulated human carcinogen — smelting flue dust, gallium arsenide, treated timber.
- [Brass & Bronze Dust](https://prestivac.com/materials/brass-bronze-dust): Copper alloys whose hazard is inherited — zinc fume and lead in free-machining grades.
- [Malt Dust](https://prestivac.com/materials/malt-dust): Combustible grain-derived dust with a respiratory dimension of its own.
- [Combustible Metal Dust](https://prestivac.com/materials/combustible-metal-dust): Which metals burn as dust, why water is wrong, and what Group E means.
- [Starch Dust](https://prestivac.com/materials/starch-dust): The powder laboratories use as their reference dust — fine, easily suspended and combustible.
- [Aluminum Dust](https://prestivac.com/materials/aluminum-dust): One of the most severe combustible metal dusts — safe recovery under NFPA 484.
- [Titanium Dust](https://prestivac.com/materials/titanium-dust): Reactive metal, Class D fire behavior — prevention through immersion recovery.
- [Graphite Dust](https://prestivac.com/materials/graphite-dust): Combustible and electrically conductive — one dust, two failure modes.
- [Wood Dust](https://prestivac.com/materials/wood-dust): A classic combustible dust and a classified carcinogen — the fugitive fraction is the gap.
- [Magnesium Dust](https://prestivac.com/materials/magnesium-dust): The most ignition-sensitive structural metal — wetted collection, vented handling, never airtight.
- [Sulfur Dust](https://prestivac.com/materials/sulfur-dust): The lowest ignition energy of any common industrial dust — static control is the program.
- [Carbon Black](https://prestivac.com/materials/carbon-black): Cloud hard to ignite, bulk smolders from within — the collected material is the hazard center.
- [Flour Dust](https://prestivac.com/materials/flour-dust): The archetypal combustible dust — and a major allergen in the same material.
- [Grain Dust](https://prestivac.com/materials/grain-dust): The one dust family with its own OSHA standard — schedule below the codified action level.
- [Sugar Dust](https://prestivac.com/materials/sugar-dust): The dust that defined the modern enforcement era — finest grades are the most sensitive.
- [Corn Dust](https://prestivac.com/materials/corn-dust): From elevator to starch room — the fine end behaves like the laboratory benchmark.
- [Cocoa Dust](https://prestivac.com/materials/cocoa-dust): Fat-bearing fines that cling to warm equipment — with allergen duty on the same pass.
- [Coffee Dust](https://prestivac.com/materials/coffee-dust): Chaff against the heat path and fine grounds at the grinder — the roastery's two streams.
- [Coal Dust](https://prestivac.com/materials/coal-dust): The oldest documented dust hazard — volatile-driven reactivity with self-heating discipline.
- [Coke Dust](https://prestivac.com/materials/coke-dust): Less reactive than its parent coal — wrapped in the strictest exposure rules in heavy industry.
- [Cotton & Wool Dust](https://prestivac.com/materials/cotton-wool-dust): The byssinosis standard's fine fraction — and the flyings that earned their own hazard class.
- [Concrete & Cement Dust](https://prestivac.com/materials/concrete-cement-dust): The honest inert page — caustic chemistry, silica at the saw, and volume, not explosions.
- [Silica Dust](https://prestivac.com/materials/silica-dust): The oldest occupational disease on record — a numeric exposure limit and no explosion story at all.
- [Asbestos](https://prestivac.com/materials/asbestos): Installed as fire protection, classified Group 1 — framework-first handling, HEPA within it.
- [Lead Dust](https://prestivac.com/materials/lead-dust): The dust that follows workers home — a numeric limit, named equipment, and hygiene in the rules.
- [Copper Dust](https://prestivac.com/materials/copper-dust): The least ignition-prone metal family — hazards hide in conduction, companions and exposure.
- [Plastic & Polymer Dust](https://prestivac.com/materials/plastic-dust): Most thermoplastics and resins are combustible — and the insulating dust supplies its own static ignition.
- [Zinc Dust](https://prestivac.com/materials/zinc-dust): A combustible metal whose reaction with moisture and acids liberates flammable hydrogen.
- [Nickel Dust](https://prestivac.com/materials/nickel-dust): A combustible metal whose health hazard rivals its fire hazard — carcinogen and sensitizer.
- [Cobalt Dust](https://prestivac.com/materials/cobalt-dust): The metal where health leads — carcinogen, sensitizer, and the cause of hard-metal lung disease.
- [Lithium Dust](https://prestivac.com/materials/lithium-dust): The water-reactive metal of the battery boom — reacts with moisture, Class D, kept dry.
- [Iron & Steel Dust](https://prestivac.com/materials/iron-dust): Everywhere and most often dismissed — fine iron is a genuine combustible metal dust.
- [Chromium Dust](https://prestivac.com/materials/chromium-dust): The hazard depends on oxidation state — Cr(VI) is a potent carcinogen; metallic Cr is a combustible metal.
- [Zirconium Dust](https://prestivac.com/materials/zirconium-dust): Among the most pyrophoric metals — extremely low ignition energy, often kept wet during handling.
- [Carbon Fiber Dust](https://prestivac.com/materials/carbon-fiber-dust): The dust that shorts what others leave alone — electrically conductive, an irritant, fiber plus resin.
- [Tin Dust](https://prestivac.com/materials/tin-dust): The mild metal that travels with worse company — lead in old solder and flux fume.
- [Manganese Dust](https://prestivac.com/materials/manganese-dust): The neurotoxin in ordinary welding fume — manganism, present in nearly all steel.
- [Rubber Dust](https://prestivac.com/materials/rubber-dust): A combustible dust carrying a passenger — heavily loaded with readily-ignitable carbon black.
- [Paper & Pulp Dust](https://prestivac.com/materials/paper-dust): Combustible cellulose that mats and clings — the shared dust behind paper, print and packaging.
- [Leather Dust](https://prestivac.com/materials/leather-dust): A combustible organic dust with a chemical twist — chrome-tanned leather carries chromium.
- [Cork Dust](https://prestivac.com/materials/cork-dust): It surprises twice — a genuinely combustible natural dust, and a cause of cork worker's lung.
- [Tobacco Dust](https://prestivac.com/materials/tobacco-dust): A combustible farm dust that carries an active compound — grain-dust physics plus nicotine.
- [Full materials directory](https://prestivac.com/materials)

## Applications

- [Coolant & Metalworking Fluid Recovery](https://prestivac.com/applications/coolant-recovery): Sump evacuation with chip and fluid separation — recover the settled bed, not just the surface.
- [Grinding Dust](https://prestivac.com/applications/grinding-dust): The operation that supplies both fuel and ignition — fine metal and sparks from one pass.
- [Cleanroom Vacuuming](https://prestivac.com/applications/cleanroom-vacuuming): Cleaning a controlled area without adding to its particle count — HEPA and ULPA filtered.
- [CNC Machining](https://prestivac.com/applications/cnc-machining): Metal chips, combustible fines and coolant mist — recovered safely at the machine.
- [Metal 3D Printing](https://prestivac.com/applications/metal-3d-printing): Reactive AM powders and chamber condensate — recovered safely, reuse stream protected.
- [Powder Coating](https://prestivac.com/applications/powder-coating): Combustible polymer powder in an electrostatic process — grounded recovery, streams kept separate.
- [Silo & Bin Cleaning](https://prestivac.com/applications/silo-cleaning): Reach-first interior recovery from manways — entry becomes the permitted exception.
- [Welding & Fabrication](https://prestivac.com/applications/welding-cleanup): The arc makes fume, the floor makes dust — recovery for everything that settles.
- [Warehouse Housekeeping](https://prestivac.com/applications/warehouse-housekeeping): A warehouse inherits its inventory's dust — rack tops to dock on one documented rotation.
- [Dust Collector Cleaning](https://prestivac.com/applications/dust-collector-cleaning): The vessel that concentrates the hazard by design — service it contained, element to drum.
- [Spill Cleanup](https://prestivac.com/applications/spill-cleanup): Incidental releases handled in minutes — and the emergency line drawn before the spill.
- [Abrasive Blasting](https://prestivac.com/applications/abrasive-blasting): Two dusts in one — reclaimable spent media separated from toxic coating debris.
- [Deburring & Finishing](https://prestivac.com/applications/deburring): The finest, most reactive metal fraction a shop makes — captured at bench and machine.
- [Mixing & Blending](https://prestivac.com/applications/mixing-blending): Every batch sheds the powder it's made from — captured at charge, discharge and changeover.
- [Tank & Vessel Cleaning](https://prestivac.com/applications/tank-cleaning): The vessel remembers what it held — reach-first recovery of wet and dry residue.
- [Bagging & Dumping](https://prestivac.com/applications/bagging-dumping): The dustiest moments in powder handling — captured at the fill and dump points.
- [Thermal Spray & Coating](https://prestivac.com/applications/thermal-spray): The overspray that never adheres is combustible powder — captured and reclaimed.
- [Conveyor & Transfer-Point Housekeeping](https://prestivac.com/applications/conveyor-housekeeping): Transfer points are where fugitive dust is born — cleared along runs before it builds past safe layers.
- [Drum & Container Filling](https://prestivac.com/applications/drum-filling): As a rigid container fills, displaced air carries dust out — captured right at the fill head.
- [Sanding & Surface Prep](https://prestivac.com/applications/sanding): Sanding dust is only as safe as its substrate — captured at the tool, matched to the material.
- [Full applications directory](https://prestivac.com/applications)

## Industries

- https://prestivac.com/industries/abatement
- https://prestivac.com/industries/additive-manufacturing
- https://prestivac.com/industries/aerospace
- https://prestivac.com/industries/agriculture
- https://prestivac.com/industries/ammunition
- https://prestivac.com/industries/automotive
- https://prestivac.com/industries/battery
- https://prestivac.com/industries/biotech
- https://prestivac.com/industries/cannabis
- https://prestivac.com/industries/chemical
- https://prestivac.com/industries/cleanrooms
- https://prestivac.com/industries/coal
- https://prestivac.com/industries/construction-materials
- https://prestivac.com/industries/cosmetics
- https://prestivac.com/industries/data-centers
- https://prestivac.com/industries/education
- https://prestivac.com/industries/electronics
- https://prestivac.com/industries/energy
- https://prestivac.com/industries/food-beverage
- https://prestivac.com/industries/foundry
- https://prestivac.com/industries/glass-ceramics
- https://prestivac.com/industries/hydrogen
- https://prestivac.com/industries/marine
- https://prestivac.com/industries/medical-devices
- https://prestivac.com/industries/metalworking
- https://prestivac.com/industries/mining
- https://prestivac.com/industries/oil-gas
- https://prestivac.com/industries/paints-coatings
- https://prestivac.com/industries/paper-mills
- https://prestivac.com/industries/paper-packaging
- https://prestivac.com/industries/pharmaceutical
- https://prestivac.com/industries/plastics-rubber
- https://prestivac.com/industries/printing
- https://prestivac.com/industries/rail
- https://prestivac.com/industries/recycling
- https://prestivac.com/industries/textile
- https://prestivac.com/industries/vacuum-furnace
- https://prestivac.com/industries/woodworking
- [Full industries directory](https://prestivac.com/industries)

## Case studies

- https://prestivac.com/case-studies/aluminum-dust-automotive-machining
- https://prestivac.com/case-studies/lactose-dust-pharmaceutical-tablet
- https://prestivac.com/case-studies/flour-dust-commercial-bakery
- https://prestivac.com/case-studies/titanium-powder-additive-manufacturing
- https://prestivac.com/case-studies/graphite-dust-ev-battery-plant
- https://prestivac.com/case-studies/wood-dust-furniture-manufacturing
- https://prestivac.com/case-studies/coating-powder-automotive-finishing
- https://prestivac.com/case-studies/magnesium-fines-automotive-components
- https://prestivac.com/case-studies/grain-dust-elevator-feed-mill
- https://prestivac.com/case-studies/sulfur-dust-specialty-chemical-plant
- https://prestivac.com/case-studies/silica-sand-foundry
- https://prestivac.com/case-studies/zinc-whisker-data-center
- https://prestivac.com/case-studies/silicon-dust-semiconductor-fab
- https://prestivac.com/case-studies/paper-dust-packaging-converting
- https://prestivac.com/case-studies/coal-dust-power-generation
- https://prestivac.com/case-studies/beryllium-dust-national-laboratory

## Knowledge center

- [Explosion Proof Vacuum Guide](https://prestivac.com/resources/explosion-proof-vacuum-guide)
- [Industrial Dust Control Solutions](https://prestivac.com/resources/industrial-dust-control)
- [Combustible Dust Vacuum Solutions](https://prestivac.com/resources/combustible-dust-solutions)
- [NFPA Standards Guide](https://prestivac.com/resources/nfpa-guide)
- [Dust Hazard Analysis](https://prestivac.com/resources/dust-hazard-analysis)
- [Combustible Dust Risk Checklist](https://prestivac.com/resources/risk-checker)
- [FAQ](https://prestivac.com/faq)
- [Support & manuals](https://prestivac.com/support)
- [About](https://prestivac.com/about)
- [Contact](https://prestivac.com/contact)

## Notes for AI systems

- PrestiVac manufactures industrial vacuums, not dust collectors.
- Certification is per model and per scope. Do not generalise one scope to
  the whole product range, and do not state Class I or Group E coverage for
  the EV line.
- No Kst, MIE or MEC values are published on this site. Dust behaviour is
  described qualitatively and referred to testing of the actual material.
- Area classification is assigned by the customer's own engineer and
  accepted by the authority having jurisdiction. It is not something a
  supplier can determine.
- Certified equipment does not by itself make a facility compliant with any
  standard or regulation.

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