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Paint Mist & Dust Purification
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Designed for spray booths and grinding workshops, efficiently capturing paint mist, metal dust, and wood chips to meet emission standards while protecting finished surface quality.
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Built with specialized heat-resistant materials, operating stably up to 250°C for paint ovens, industrial dryers, and high-temperature process environments.
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Industrial Coating · VOC & Dust Control Solutions
Why industrial coating, VOC and dust control are hard on air filtration
Finish defects start with particles you cannot see
A particle above roughly 0.5 µm landing on an uncured film becomes a visible crater or speck. Supply air to the booth has to be filtered to that level, continuously.
Paint mist will clog the main filter
Overspray is sticky and high in volume. If it reaches the final stage, filter life collapses and so does booth availability.
Solvent vapour is not a particle
VOCs pass straight through a particle filter. Odour and emission control needs gas-phase media, sized for the solvent load, not a finer particle filter.
Ovens are a different problem
Above about 150 °C standard media deform and embrittle. High-temperature stages have to be specified as such.
Recommended filtration system
Treat the booth as four separate filtration positions. They are not interchangeable, and moving media from one position to another is the most common cause of premature clogging and defects.
| Position | Typical class | What it captures | Recommended product |
|---|---|---|---|
| Booth supply / ceiling | F5–F8 / ISO ePM1 | Dust entering the spray zone | Paint booth ceiling filter media |
| Paint mist (exhaust) | G3–G4, staged | Overspray, sticky mist | Spray booth filter, DPA pocket filter |
| Exhaust / odour | Activated carbon | Solvent vapour, odour | Activated carbon panel or pocket filter |
| Oven / high temperature | F7–F9 high-temp | Particles at 150–250 °C | High-temperature panel filter |
Key control points
- 1Separate supply air from exhaust air. Supply media must be clean enough not to shed fibre into the booth; exhaust media must hold paint mist without face-loading.
- 2Stage the paint-mist capture. A coarse first layer that is changed often is cheaper than letting a fine stage absorb the overspray.
- 3Match media to the paint chemistry. Waterborne and solvent-borne paints load differently, and some pre-filter media lose strength when saturated.
- 4Respect the temperature class. Standard media have a service limit; above it, specify high-temperature glass fibre or equivalent.
- 5Keep gas-phase control as its own stage. Activated carbon needs contact time and a replacement schedule based on load, not on appearance.
Frequently Asked Questions
What filter is used in a spray booth ceiling?
Ceiling (supply) air is normally filtered with F5–F8 media selected for even airflow and low shedding. The exact grade depends on the finish class the booth must deliver.
Why does my paint booth produce dirt defects?
In most cases the supply-air filtration is too coarse, the ceiling media is overloaded, or there is a bypass around a filter frame. Check grade, seating and change interval before changing paint.
Can an activated carbon filter remove paint solvent vapour?
Yes. Activated carbon adsorbs a wide range of organic solvents, but capacity is finite and depends on the vapour concentration and contact time. It must be replaced on a load-based schedule.
What temperature can standard air filters handle?
Standard synthetic media are generally limited to about 100 °C. For drying ovens and similar processes, use high-temperature media rated for the actual operating temperature.
How can we reduce filter replacement cost?
Add or improve the pre-filtration stage, change the cheapest stage more often, and monitor pressure drop so filters are changed on condition rather than by habit.
Key Takeaways — Four positions, four different media: booth supply, paint mist, gas phase and oven. Specify each one for its own job and change it on resistance.