Paint Booth Air Flow Meter

Fans to push and pull the air being pushed in and pulled out are done with two types of fans.

Paint booth air flow meter.

In the past nfpa dictated paint booth air flow needed to be 100 fpm for non electric static coating application downdrafts were usually between 50 100 fpm. The front flow booth draws air in through filtered front doors and exhausts the air out through the filter banks located at the rear of the booth this traditional style booth has been a favorite among painters for years in providing a clean environment to. Airflow in a downdraft paint booth. For this example let s use 50 fpm.

A 14 wide x 9 tall x 26 long spray paint booth will exhaust at least 13 104 cubic feet of air per minute. Booth spray room. This exhaust fan needs to be properly sized to move enough air out of the work area. Once you have measured the air flow you will want to see what the original design specification for your paint booth airflow was.

This requires a building at least 17 472 sq ft with 15. In sufficiently high concentrations the fumes will cause health problems and may even lead to serious injury. If a downdraft paint booth is 16 feet wide and 14 feet tall typical air velocity in the booth would be 50 to 100 fpm. The total flow through the booth 16 x 40 x 50 would be 32 000 cfm.

When spraying paint in a paint booth you need to expel the fumes from the work area. The real issue with air flow in a spray paint booth is having adequate air. Running this spray booth for twenty minutes requires 262 080 cubic feet of available air. Dividing the flow rate by the volume 32 000 8 960 gives 3 5 air changes per minute.

The three main styles of paint booths are cross draft down draft and side down draft paint booths. Controlling the paint booth air flow going into the booth with relation to the air being exhausted from the booth is critically important to maintain the proper flow of air over the item being painted and remove the over spray effectively.