Paint Booth Air Flow Meter

The three main styles of paint booths are cross draft down draft and side down draft paint booths.

Paint booth air flow meter. Typical paint booth air flow values can be read about here or just remember typically a cross draft paint booth will have air flow of about 100 feet per minute based on the width and height of the booth a downdraft will have air flow of about 50 feet per minute. This exhaust fan needs to be properly sized to move enough air out of the work area. The total flow through the booth 16 x 40 x 50 would be 32 000 cfm. The fumes are removed from the area by use of an exhaust fan.

Their air flow requirements are summarized below. Dividing the flow rate by the volume 32 000 8 960 gives 3 5 air changes per minute. 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. When spraying paint in a paint booth you need to expel the fumes from 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. Running this spray booth for twenty minutes requires 262 080 cubic feet of available air. This requires a building at least 17 472 sq ft with 15. 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. The real issue with air flow in a spray paint booth is having adequate air. 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. Booth spray room.

Airflow in a downdraft paint booth. 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.