Airmaster · Wall-mount fan · Medium airflow

Airmaster 20-Inch Washdown Wall-Mount Fan

Airmaster 20-Inch Washdown Wall-Mount Fan

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Photos: Amazon product listing ↗ · refreshed Sep 16, 2026

Airflow (high)
2,650 CFM
Amazon listing ↗
Blade diameter
20 in
Amazon listing ↗

Airmaster 20-Inch Washdown Wall-Mount Fan is a wall-mount fan with 2,650 CFM rated airflow, 20-inch listed fan diameter.

See price on AmazonIs 2,650 CFM enough for my room?Compare this fan

What works

  • 2,650 CFM rated airflow
  • 20-inch listed fan diameter

What doesn't

  • Requires a suitable mounting point

Who it's for

Good fit

  • Fixed circulation where a suitable mounting point is available

Look elsewhere if

  • You need to move the fan between work areas

Airmaster 20-Inch Washdown Wall-Mount Fan is a wall-mount fan with 2,650 CFM rated airflow, 20-inch listed fan diameter.

Confirm the supplied bracket and the structural support before installation. A fan head sold separately may require additional mounting hardware.

See the current Amazon listing for the supplied configuration, and use the specification sources on this page to check the documented values.

Before you buy

Installation and buying checks

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

  1. Mounting and support

    What mounting method and hardware does the exact unit require?

  2. Clearance and handling

    Do the listed physical details leave enough clearance for installation, adjustment, and service?

  3. Electrical match

    What voltage and connection requirements does the exact unit specify?

  4. 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?

  5. Location requirements

    Does the site require an environmental rating or guard? Neither is listed here.

Put 2,650 CFM in context

The Airmaster 20-Inch Washdown Wall-Mount Fan has a listed airflow of 2,650 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.

RoomSizeNominal room volumes / hourNominal pass interval
One-car garage22 × 12 × 9 ft · 2,376 ft³67×54 s
Two-car garage22 × 20 × 9 ft · 3,960 ft³40×1.5 min
Workshop40 × 30 × 12 ft · 14,400 ft³11×5.4 min
Warehouse bay100 × 50 × 16 ft · 80,000 ft³2×30 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 September 15, 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

Photos illustrate the listed model. Confirm the current variant, included hardware, and finish with the seller before purchase.

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