🎨 NFPA 33 Spray Application (Downdraft Velocity 100 FPM, Total Exhaust CFM)

Industrial Spray Booth Airflow Calculator

Size downdraft and crossdraft mechanical ventilation systems for industrial paint spray application booths under NFPA 33 & OSHA 1910.107: calculate mandatory average face airflow velocity (100 FPM downdraft / 75 FPM crossdraft), total booth exhaust airflow (CFM = Floor Area x 100 FPM), intake filter diffusion ceilings, and paint booth mechanical contracting profits.

1. Project & Operating Inputs

Spray Booth Floor Area (Square Feet e.g. 720 Sq Ft Commercial Booth)

Design Face Velocity (FPM e.g. 100 FPM Full Downdraft Standard)

Customer Bid Price for Supplied & Landed Spray Booth AHU ($)

Direct-Fired Gas MAU, Spark-Proof Exhaust Fans, Diffusion Ceiling ($)

2. Financial Breakdown & Yield

NFPA 33 SPRAY BOOTH VENTILATION

Turnkey Paint Booth Ventilation Profit

Industrial Finishing Systems Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost