How long do spray booth filters last?

A guide to replacing and checking paint booth filters

Spray booth filters typically last between 100 to 300 hours of active use, but their lifespan varies based on factors such as filter type, spray booth usage frequency, the materials being sprayed, and environmental conditions. Here’s a closer look at filter types and their longevity:

Intake Filters

  • Average Lifespan: 3 to 6 months or around 300 hours of use.
  • Replacement Factors: Intake filters generally last longer than exhaust filters. They collect dust and particles before they enter the booth, helping maintain a clean workspace. If your booth operates continuously, intake filters may need replacement every 1 to 3 months.

Exhaust Filters

  • Average Lifespan: 1 to 3 months or around 100 to 150 hours of spraying.
  • Replacement Factors: Exhaust filters capture overspray, paint particles, and vapors, which accumulate quickly and can clog the filters, decreasing airflow. If the spray booth is used frequently or with high-solids coatings, these filters may need to be replaced more often.

Carbon Filters (for VOC Control)

  • Average Lifespan: 6 months to 1 year, depending on the volume of volatile organic compounds (VOCs) in use.
  • Replacement Factors: Carbon filters are often used to control odors and VOC emissions. They degrade with exposure to VOCs and may require replacement after a few months if VOC levels are high.

Key Signs It’s Time to Replace Spray Booth Filters

  • Reduced airflow or pressure: Low airflow is a sign of clogging.
  • Visible paint buildup: Exhaust filters especially can show visible signs of overspray.
  • Odours or fumes lingering in the booth: This can signal that carbon filters are no longer effectively absorbing VOCs.

Pro-Tip:

Many spray booths have a manometer or gauge that monitors air pressure. A drop in pressure often signals filter clogging, indicating the need for replacement.

Regular maintenance and monitoring will help keep your spray booth filters effective and prolong their lifespan!

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ACE Filtration is one of UK’s leading manufacturers and supplier of HVAC filters, such as panel filters, bag filters, HEPAs MVHR filter and grease filters.

ACE Filtration, Airflow Works, Seymour Road, Northfleet, Kent
DA11 7BW
T: 01474 325 666 E: sales@acefiltration.co.uk
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