Big Ass Fans Cool-Space 350
#10 in 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$3,099
The Big Ass Fans Cool-Space 350 is the better evaporative cooler overall, rated 3.0 to 2.8. The Big Ass Fans Cool-Space 350 leads on warranty and tank. The Hessaire MC37 wins on value and features. The Hessaire MC37 costs $2,701 less ($398 vs $3,099).
Hessaire MC37
#11 in 2,000 CFM and upFull review
The value pick for a garage, patio or shop in a dry climate: lots of airflow per dollar with oscillation and a hose hookup.
Amazon $398$398
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.
Which should you buy?
- Choose the Big Ass Fans Cool-Space 350 for warranty (5-year warranty vs 1-year warranty) and tank (50 gal tank vs 10.3 gal tank).
- Choose the Hessaire MC37 for value ($128.39 per 1,000 CFM ($398, 3,100 CFM) vs $911.47 per 1,000 CFM ($3,099, 3,400 CFM)) and features (rigid cooling pads, oscillation, hose hookup vs rigid cooling pads, hose hookup).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 2,000 CFM and up evaporative cooler; a clear win is highlighted. How we rank explains each one.
| Factor weight | Big Ass Fans Cool-Space 350 | Hessaire MC37 |
|---|---|---|
| Overall rating | 3.0/5 | 2.8/5 |
| Value 30% | 3 $911.47 per 1,000 CFM ($3,099, 3,400 CFM) | 73 $128.39 per 1,000 CFM ($398, 3,100 CFM) |
| Airflow 25% | 20 3,400 CFM | 13 3,100 CFM |
| Tank 10% | 100 50 gal tank | 10 10.3 gal tank |
| Features 15% | 50 rigid cooling pads, hose hookup | 75 rigid cooling pads, oscillation, hose hookup |
| Warranty 20% | 100 5-year warranty | 0 1-year warranty |
Specifications
| Big Ass Fans Cool-Space 350 | Hessaire MC37 | |
|---|---|---|
| Cooling | ||
| Airflow | 3,400 CFM | 3,100 CFM |
| Cooling area | 2,300 sq ft | 950 sq ft |
| Cooling pads | Rigid cellulose | Rigid cellulose |
| Pad thickness | 8 in | - |
| Tank | 50 gal | 10.3 gal |
| Hose hookup | Yes | Yes |
| Controls and build | ||
| Fan speeds | - | 3 |
| Oscillation | - | Yes |
| Remote | No | No |
| Power draw | - | 250 W |
| Weight | 160 lb | 40 lb |
| Warranty | 5 years | 1 year |