How to Choose the Right Filters
Spray booth filtration directly impacts paint finish quality and workshop air quality. Contaminated inlet air introduces dust and particles into the spray environment, while under-performing exhaust filters allow paint overspray and solvents to accumulate, creating health and fire hazards.
Types of spray booth filters:
**Inlet (ceiling/roof) filters:** Capture airborne dust and particles before air enters the spray booth. These high-efficiency filters are typically changed regularly as they accumulate dust from the workshop environment.
**Exhaust (floor/wall) filters:** Capture overspray, paint particles, and solvents leaving the booth. Critical for environmental compliance and preventing solvent buildup in extraction systems.
**Paint strainers:** Fine mesh or paper cone strainers used when pouring mixed paint into a spray gun. Removes agglomerated particles, hardener lumps, and debris that would clog the spray gun nozzle or cause defects in the finish.
When to replace booth filters:
Inlet filters should be replaced when airflow reduces noticeably or when the filter surface becomes visibly loaded. Exhaust filters typically need replacement every few weeks in a busy panel shop. Always use the correct filter grade for your booth specification.