Abestorm · Exhaust fan · Small airflow

Abestorm NeatyFresh 540 Crawlspace Ventilation Fan

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540 CFMon high
8.7-inchblade

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Specs cited from Amazon listing ↗Photos: Amazon listing ↗ · refreshed Oct 31, 2026

Abestorm NeatyFresh 540 Crawlspace Ventilation Fan is listed at 540 CFM.

What works

540 CFM on high from an 8.7-inch blade

What doesn't

No dBA figure to judge how loud it runs

Who it's for

Good fit

Ventilation work with a planned intake, discharge and power supply

Look elsewhere if

Spot cooling at a workstation, where a circulation fan does the job better

A good fit for your job? Check the current price and delivery.

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Abestorm NeatyFresh 540 Crawlspace Ventilation Fan is the NeatyFresh 540 configuration identified by the exact listing.

Before you buy

Installation and buying checks

Use these questions to verify the exact configuration. Linked facts are cited; unlisted details stay questions.

Mounting and support
What mounting method and hardware does the exact unit require?
Clearance and handling
Do the listed physical details leave enough clearance for installation, adjustment, and service?
- Blade diameter: 8.7 inAmazon listing ↗
Electrical match
What voltage and connection requirements does the exact unit specify?
Airflow at the job
Is the listed airflow rated at an operating point that matches the job after placement, obstructions, and system resistance are considered?
- Airflow (high): 540 CFMAmazon listing ↗
Location requirements
Does the site require an environmental rating or guard? Neither is listed here.

Put 540 CFM in context

The Abestorm NeatyFresh 540 Crawlspace Ventilation Fan has a listed airflow of 540 cubic feet per minute. The table compares this rated volume with example room volumes. It does not measure fresh-air exchange, air speed at your body, or room coverage.

Room	Size	Nominal room volumes / hour	Nominal pass interval
One-car garage	22 × 12 × 9 ft · 2,376 ft³	14×	4.4 min
Two-car garage	22 × 20 × 9 ft · 3,960 ft³	8.2×	7.3 min
Workshop	40 × 30 × 12 ft · 14,400 ft³	2.3×	27 min
Warehouse bay	100 × 50 × 16 ft · 80,000 ft³	0.4×	148 min

A circulation fan does not by itself replace indoor air. Exhaust airflow depends on a makeup-air path and system resistance. Use installed outdoor airflow for ventilation calculations.

Formula: airflow × 60 ÷ room volume. CDC explains the ventilation form of this equation; here the input is a catalog rating, so the result is a volume comparison.

Work it out for your own room →

Listing details

What we know about this listing

Listing data was imported on October 31, 2026. Each specification can have a different source-check date; the evidence below is the most precise source information available here.

Sources for 2 listed specifications