Choosing the Right Air Compressor for You!
Watch: How to Choose the Right Air Compressor (≈5 min)
How to Choose the Right Air Compressor (CFM, PSI & Size Guide)
Choosing the right air compressor comes down to one thing: making sure it can properly run your tools.
Quick Rule: Match your compressor’s CFM output to your tool’s required CFM.
Step 1: Check Your Air Tool Requirements
2.20 CFM @ 90 PSI
- CFM = air volume
- PSI = pressure
Step 2: Understand CFM vs PSI
CFM determines if your tool runs properly. PSI determines pressure.
If your compressor doesn’t meet CFM, your tool won’t perform correctly.
Step 3: Adjust for Continuous Use
- 1–4 hours: multiply CFM × 2
- 6+ hours: multiply CFM × 3
Watch: Which Air Compressor is Actually the Quietest?
Example: 3.8 CFM tool
- Light → 3.8 CFM
- Continuous → ~7.4 CFM
- Heavy → ~11+ CFM
Compressor Size Guidelines
2 HP
- Light duty
4 HP
- Most shops
6 HP
- Heavy use
Common Mistakes
- Choosing by tank size
- Ignoring duty cycle
Watch: High PSI — Good or Bad?
Final Thoughts
Match your tool’s CFM to your compressor output—this is what matters most.