Spray Booth Filter Velocity Calculator
Filter face velocity for paint booth intake or exhaust filters.
Enter your values
ⓘ Live results
Results
- Filter face velocity
- 104 FPM
- Filter area
- 96 sq ft
- Typical limit
- 100-150 FPM
- Status
- Within typical limit
Quick answer
Paint booth filters typically need to stay under about 100-150 FPM face velocity to maintain arrestance efficiency and acceptable pressure drop.
Velocity = CFM / filter area
How to use the Spray Booth Filter Velocity Calculator
- 1Enter the booth's design airflow.
- 2Enter the filter bank's width and height.
- 3Compare the resulting face velocity to the filter manufacturer's rated maximum.
Worked example
Using the values the calculator loads with:
Inputs
- Booth airflow10000 CFM
- Filter bank width12 ft
- Filter bank height8 ft
Results
- Filter face velocity104 FPM
- Filter area96 sq ft
- Typical limit100-150 FPM
- StatusWithin typical limit
Frequently asked questions
What if velocity is too high?
Add filter area (larger bank or additional stages) or reduce fan airflow to protect filter life and capture efficiency.
Does loaded filter velocity change?
As filters load with paint, resistance rises and actual velocity through clean areas increases — monitor with a manometer.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.