💨 Cooling & Ventilation Calculators

Ceiling fan sizing, whole-house fans, attic ventilation, evaporative coolers, dehumidifiers, and air purifiers.

Find the right ceiling fan size for your room and learn the optimal mounting height and blade clearance requirements.

Calculate the right size whole-house fan to cool your home by exchanging indoor air with cooler outdoor evening air.

Calculate the Net Free Area (NFA) of attic ventilation your home needs to prevent moisture buildup and reduce cooling costs.

Determine if evaporative (swamp) cooling will work in your climate and calculate the right cooler size for your home.

Calculate the right dehumidifier size in pints per day based on your room size, moisture level, and conditions.

Calculate the right CADR rating and air purifier size for your room based on square footage and air quality concerns.

Calculate the minimum fresh air ventilation rate for your home based on ASHRAE 62.2 standards to maintain healthy indoor air quality.