Five key facts about spray booth filters

If you have ever worked with a spray booth before you’ll understand the importance of a well-functioning spray booth filter. Without one your paint booth can become clogged, causing health problems for your staff and those in the rest of the building. But this can be avoided by using simple maintenance techniques.

The dangers of not changing a filter

Failure to replace one of your spray booth filters can lead to a number of health issues, including occupational asthma which can cause breathlessness, a runny nose and flu-like shivers. This can be caused by exposure to isocyanate, which is a hardener that is found in many paints. Isocyanate exposure is one of the biggest causes of occupational asthma in the UK. Air filters are the main component of any industrial paint booth. These filters enhance the effectiveness of your paint booth while also holding your shop a secure place for you employees to work. Without a working filtration system, your paint booth will swiftly become blocked. This means that it is not accurately cleaning the air in your shop, placing everyone in the building at danger.

Exhaust filters

Exhaust filters need changing regularly as they experience a higher volume of use, becoming blocked with paint residue. If this happens then the filter’s performance will be greatly reduced and the exhaust fan will be given a harder job to do. On average these filters will need replacing every couple of weeks to maintain good service and release fresh air into your body shop.

Check on intake filters

It should be easy to see when your intake filter needs changing just by looking into it. We recommend checking it daily, as factors such as the dust production and poor air quality outside the spray booth will decrease an intake filter’s filtration. With average usage, an intake filter can last several months before it needs replacing.

Maintenance is essential

Each spray booth filter is only guaranteed for a number of sprays and has its own retention capacity. Take the Binks spray booth cardboard concertina filter, which can be found at many stockists including These have a retention capacity of up to 18kg/m2 depending on the product used. Always seek advice if you’re unsure on how often to change this essential filter. It can be tough to keep track of the number of hours each filter has been utilized, but apprehending your normal usage patterns can go a long way in deciding your maintenance plan. A service that paints 50 cars each month will have an excessive various maintenance plan than one that paints 200 cars per month. Each shop is unusual, so you should attempt to decide your services average usage and plan your filter transformations based on these numbers.

Tracking usage is difficult

It’s almost impossible to work out how many hours your booth filters have been used. Instead, it’s a good idea to work out roughly how many vehicles you spray in an average month and replace your filters as necessary. These can be scheduled automatically at a number of places, so there’s no reason to put your productivity or the health of your staff at risk.