For warehouses, factories and outdoor job sites that need one huge cooler with app control and a five year warranty.
Amazon $4,9504 Big Ass Fans evaporative coolers ranked. Each one is scored and ranked against every brand in its airflow, so "#3 mid-size" means third of all mid-size evaporative coolers here, not third among Big Ass Fans's own.
Big Ass Fans makes 4 current evaporative coolers: 4 2,000 CFM and up. Prices run from $1,999 for the Big Ass Fans Cool-Space 300 to $4,950 for the Big Ass Fans Cool-Space 500. Its best-rated model: the Big Ass Fans Cool-Space 500 (#2 of 13 2,000 CFM and up, rated 4.3).
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Big Ass Fans evaporative coolers 4
- Big Ass Fans Cool-Space 500#2 2,000 CFM and upFull review
For warehouses, factories and outdoor job sites that need one huge cooler with app control and a five year warranty.
Amazon $4,950$4,95024,000 CFM6,500 sq ft64 gal - Big Ass Fans Cool-Space 400#5 2,000 CFM and upFull review
For factories, warehouses and gyms that want commercial build quality and a long warranty in a cooler that plugs into a regular outlet.
Amazon $3,699$3,69910,000 CFM3,600 sq ft46 gal - Big Ass Fans Cool-Space 350#10 2,000 CFM and upFull review
For a patio or work area without a handy hose, where long unattended runtime matters more than airflow per dollar.
Amazon $3,099$3,0993,400 CFM2,300 sq ft50 gal - Big Ass Fans Cool-Space 300#12 2,000 CFM and upFull review
For a workshop or studio owner who wants a heavy duty cooler with thick media and a long warranty more than raw airflow per dollar.
Amazon $1,999$1,9992,800 CFM1,200 sq ft16 gal