Air-operated — no electrical components
Pneumatic Vacuums
Driven entirely by compressed air, with no motors, switches or wiring anywhere on the unit — the straightforward answer for classified areas and wash-down environments.

What defines this line
- Zero electrical components
- Suited to classified areas
- Minimal moving parts, minimal maintenance
- Runs from plant compressed air
Certification & documentation
Units in this line are built on the same explosion-proof construction principles — conductive, grounded and bonded throughout. Certification coverage varies by line and configuration: our EX1 HEPA line is UL 1203 Certified under UL 1203 certification. Ask us for the certification documents that apply to the configuration you are specifying.
Area classification is determined by your own engineering assessment. We match equipment to the classification you provide — see how Classes, Divisions and Groups work.
Models in this line
12 models — specifications in the datasheetElectric or air-operated?
The single most useful distinction in the range, and the one buyers most often have to ask for. Both are built with the same conductive, grounded and bonded recovery path — what differs is the drive.
| Aspect | Electric | Air-operated |
|---|---|---|
| Power source | Electric motor, mains supply | Compressed air through a venturi — plant air supply |
| Electrical ignition source | Present by definition; managed by certified construction suitable for the classification | None in the recovery unit — no motor, no switch, no cord at all |
| Site requirement | Suitable power at the point of use | Adequate compressed-air pressure and volume at the point of use |
| Duty cycle | Suits intermittent and scheduled housekeeping | Tolerates long continuous running well |
| Portability | Limited by cord runs and available outlets | Limited by air-line reach; no electrical trailing lead |
| Noise | Motor noise; generally quieter than an air drive | Air exhaust makes these louder — worth planning for in occupied areas |
| Maintenance | Motor, brushes where fitted, and electrical components | No electric motor to service; depends on clean, dry plant air |
How to choose within this line
- 01
Verify your compressed air supply
Air-operated units depend on the plant air system. Available pressure and volume at the point of use determine which models are practical — worth confirming before specifying.
- 02
No electrical components at all
Because the drive is pneumatic, there is no motor, no switch and no cord in the recovery unit. For many classified areas and wash-down environments that is the deciding advantage.
- 03
Consider continuous duty
Air-operated units tolerate long, uninterrupted running well, which suits production housekeeping and central-station use.
- 04
Match the recovery path to the material
Conductive construction, grounding and bonding still matter with an air drive — the dust, not just the motor, can carry the ignition risk.
Where this line is used
Not listed? Browse the full industry directory or start from your material. New to dust hazards? Start with how dust explosions work or vacuum vs dust collector.
Frequently asked questions
- Should I choose an electric or an air-operated vacuum?
- It usually comes down to two things: your area classification and whether you have adequate compressed air at the point of use. An air-operated unit is driven by compressed air through a venturi, so there is no electric motor, no switch and no cord in the recovery unit at all — which removes the electrical ignition question from the drive entirely and suits long continuous running. Electric units suit facilities without sufficient plant air. Both are built with the same conductive, grounded and bonded recovery path, because the dust carries static regardless of what drives the machine. Air units are louder, which is worth planning for in occupied areas.
- What is the difference between HEPA and ULPA filtration?
- They are tested at different particle sizes and efficiencies. Standard HEPA is tested to a minimum of 99.97% efficiency at 0.3 micrometres; PrestiVac units are rated at 99.99% absolute, and factory H14 grades reach 99.995%. ULPA extends further, to 99.9995% at 0.12 micrometres. Which you need follows the requirement — the room classification, the exposure limit, or the sanitation standard — rather than a preference for the larger number. Ask what a filter is tested to rather than what it is called.
- Do you supply dust collectors?
- No. We manufacture industrial vacuums — explosion-proof, HEPA, air-operated, wet and dry, central systems and custom-built units. A dust collector is a different machine: high air volume at low suction, capturing dust at the source through fixed ducting. A vacuum is lower volume at high suction, removing what has already settled. Most dust programmes need both, and we would rather point you to a collection-system specialist for that half than sell you the wrong equipment.
- Can one vacuum handle several different materials?
- Sometimes, but it is worth checking rather than assuming. The constraints are the most demanding material in the mix, the classification of every area the unit will enter, and whether any of the materials should be kept separate. Reactive metal fines should not be combined with other debris or with coolant, and regulated toxic materials such as lead, cadmium and beryllium call for dedicated equipment that never leaves the regulated area. A unit that also cleans the loading dock has no business in a cleanroom.
- Do you build custom systems?
- Yes — custom-built systems are part of the range, and with more than 200 versions built over the years most requirements have a precedent. The useful thing to bring is constraints rather than a specification: the material, the area classification, the duty cycle, the footprint available, and how recovered material needs to leave the building. Those five determine what can be built, and asking early about the certification documents your compliance process will require means the build produces them.
Other product lines
- Explosion Proof VacuumsGrounded, bonded recovery for combustible dust
- HEPA Vacuums99.99% filtration for fine and hazardous dust
- Industrial VacuumsContinuous-duty recovery for demanding plants
- ESD Static Free Vacuum CleanersStatic dissipating throughout
- Cleanroom Vacuum CleanersJudged by what leaves the exhaust
- Pharmaceutical Vacuum CleanersContainment and sanitation together
- Wet & Dry SystemsLiquids, sludge and dust on one platform
- Central Vacuum SystemsFacility-wide housekeeping from fixed drops
- Custom Engineered SystemsDesigned around your exact application
- AccessoriesGrounded hoses, tools and filters
Selecting equipment for this application
Written for engineers specifying recovery equipment. Each guide covers how the decision is actually made rather than which product to buy.
Equipment selection
Electric vs pneumatic
Air-operated and electric industrial vacuums solve the same recovery problem by different routes. How compressed air availability, duty cycle.
ReadBuying guide
Choosing an explosion-proof vacuum
The specification sequence that avoids expensive mistakes: identify the material, establish the area classification, then select construction.
ReadEngineering
Grounding & 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.
ReadFundamentals
Sources of ignition
Mechanical sparks, hot surfaces, static discharge, electrical arcs, hot work, self-heating and smouldering.
ReadGet a Quote
Tell us your material, your classification and how hard you will work it. Our technical team will recommend the PrestiVac model best suited to the job.
Get a QuoteTalk to the manufacturer
Get the right explosion proof vacuum for your application.
Tell us what you need to vacuum and where. Our technical team will recommend the PrestiVac model best suited to your material, your classification and how hard you will work it — and because we build every unit ourselves, we can modify it to fit.
- Legally certified explosion proof
- Solid stainless steel construction
- Industry-best 3-year warranty
- Designed & manufactured in the USA
- 200+ vacuum versions












