Keeping a clean spray booth is essential to producing the kinds of perfect finishes that your business needs to stay profitable. One of the simplest things you can do that has a huge impact on the cleanliness of your spray booth is changing the intake and exhaust filters on a regular schedule.
Proper maintenance of your spray booth filters ensures a quality finish and an efficient operation of your spray booth and it’s an important step in ensuring that your paint operation meets health and safety standards required by OSHA and NFPA regulations. Different styles and brands of filters will reach their “target” reading and require replacement at varying rates depending upon the paint type, booth design, fan speed, temperature, spray equipment, etc. Your spray booth manufacturer or filter supplier can help you design an effective schedule for changing filters while also finding a balance between your filtration needs and cost efficiency in your booth’s performance.
Readings from a manometer or magnehelic pressure gauge should be used to establish a change-out schedule for exhaust filters according to the booth manufacturer’s specifications. If your booth does not have a pressure gauge, establish a strict maintenance schedule based upon the volume of spraying taking place on a day-to-day basis. It is typically recommended that ceiling filters be changed at least twice a year. All other intake filters should be changed once a month or as needed.
Clogged or overloaded filters may not allow proper air flow through the booth causing dust or overspray to re-circulate with the booth and affect the finish. In some severe situations, flammable or explosive conditions may be created within the closed space.
When replacing used filters, wear appropriate personal protection: respirator or dust mask, gloves, and coveralls to protect against dry paint and dust particles that may break loose while handling dry filters.
Please note, there are Safety Hazards with disposing waste filters, you must determine whether the filters would be considered hazardous waste. In some cases, improper disposal of used filters caused spontaneous combustion. Consult with your filter supplier, and local authorities for assistance in properly characterizing and handling your waste filters.
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