Spray Booth Filter Velocity Calculator
Filter face velocity for paint booth intake or exhaust filters.
Enter your values
Enter the booth airflow in CFM.
Enter the filter bank width in ft.
Enter the filter bank height in ft.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- 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
At a glance
| What it does | Filter face velocity for paint booth intake or exhaust filters. |
|---|---|
| Category | HVAC & Airflow |
| Inputs needed | Booth airflow, Filter bank width, Filter bank height |
| Main output | Filter face velocity |
| Formula | Velocity = CFM / filter area |
| Cost | Free — no sign-up, no download |
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.
Inputs explained
- Booth airflow(CFM)
- Enter the booth airflow in CFM.
- Filter bank width(ft)
- Enter the filter bank width in ft.
- Filter bank height(ft)
- Enter the filter bank height in ft.
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.
What do I need to enter into the Spray Booth Filter Velocity Calculator?
Just 3 values: booth airflow, filter bank width, filter bank height. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Spray Booth Filter Velocity Calculator work out the answer?
Paint booth filters typically need to stay under about 100-150 FPM face velocity to maintain arrestance efficiency and acceptable pressure drop. It applies the formula Velocity = CFM / filter area and shows the working so you can check each step by hand.
Is the Spray Booth Filter Velocity Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.