Paint Booth Filters by Autocoat Engineering

Filters are the most critical consumable component in any paint booth or spray booth. They protect the fan motor from paint-laden air, maintain correct airflow velocity across the spray zone, and ensure overspray particles are captured before reaching the atmosphere. Autocoat Engineering supplies high-quality inlet, exhaust and water wash filters compatible with all booth types — including our own and those from other manufacturers.

Types of Paint Booth Filters

Inlet Filters

Installed at the air supply plenum, inlet filters remove dust and particulates from incoming air before it enters the painting zone. Essential for achieving a dust-free finish.

Exhaust Filters

Positioned in the exhaust plenum, these filters capture paint overspray particles before air is discharged. They protect fans, ductwork and the environment from contamination.

Water Wash Filters

Used in water wash spray booths, these filtration stages use a water curtain to scrub overspray from exhaust air. Ideal for high-volume operations requiring continuous operation.

Key Features of Our Filters

High paint arrestance efficiency — captures up to 98% of overspray particles
Available in standard and custom sizes to fit all booth configurations
Manufactured from synthetic fibre media for consistent performance
Multi-layer construction increases filter life and reduces change frequency
Low initial resistance minimises fan energy consumption
Compatible with solvent-based, water-based and powder coating processes
Flame-retardant materials meet international fire safety standards
Supplied in bulk packs for convenience and cost efficiency

Why Regular Filter Maintenance Matters

Blocked or saturated filters are the most common cause of poor paint finish quality in industrial spray operations. When exhaust filters become loaded with paint, back pressure increases, air velocity across the spray zone drops and solvent vapour lingers — leading to runs, dry spray and uneven film build. Inlet filter neglect allows dust and fibres into the booth, causing inclusions in the cured film.

As a general guideline, exhaust filters should be inspected every 50–80 operating hours and replaced before pressure drop across the filter exceeds the manufacturer's specification. Inlet filters typically require replacement every 200–400 hours depending on ambient conditions. Autocoat Engineering recommends scheduling filter changes as part of a planned preventive maintenance programme rather than waiting for visible signs of failure.

We supply replacement filters for all our booth models and can also source filters for third-party booths. Contact us with your booth model and filter dimensions for a prompt quotation.