Air Vent
Air Vent 24 in. Direct Drive Whole House Fan (54301)
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Best Whole House Fans · head-to-head
Air Vent 24 in. Direct Drive Whole House Fan (54301) vs Master Flow WHFS24M Direct Drive Whole House Fan
A sourced, side-by-side comparison. Master Flow WHFS24M Direct Drive Whole House Fan is cheaper at $379.99. Every spec and price links to its source.
Master Flow
Master Flow WHFS24M Direct Drive Whole House Fan
$379.99
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Air Vent 24 in. Direct Drive Whole House Fan (54301) | Master Flow WHFS24M Direct Drive Whole House Fan |
|---|---|---|
| US price | — | $379.99 |
| Brand | Air Vent | Master Flow |
| Released | — | — |
| Airflow (CFM) | 3,500 CFM | 4,500 CFM |
| Coverage (sq ft) | up to 1,500 sq ft | up to 2,000 sq ft |
| Speed settings | 2 | — |
| Drive type | direct_drive | direct_drive |
| Insulated damper | No | No |
| Remote or app control | No | No |
| Sound level note | — | — |
| Motor warranty years | 10 | — |
Sources — Air Vent 24 in. Direct Drive Whole House Fan (54301): sutherlands.com (verified 2026-08-16). Master Flow WHFS24M Direct Drive Whole House Fan: thelumberyard.com (verified 2026-08-16).
What's the difference between the Air Vent 24 in. Direct Drive Whole House Fan (54301) and Master Flow WHFS24M Direct Drive Whole House Fan?
Where the two actually differ on the specs we track (2 of 8). Matching specs are omitted.
- Airflow (CFM): Air Vent 24 in. Direct Drive Whole House Fan (54301) 3,500 CFM vs Master Flow WHFS24M Direct Drive Whole House Fan 4,500 CFM
- Coverage (sq ft): Air Vent 24 in. Direct Drive Whole House Fan (54301) up to 1,500 sq ft vs Master Flow WHFS24M Direct Drive Whole House Fan up to 2,000 sq ft