MOUNTO · Air mover · Large airflow

MOUNTO AM25AX Axial Air Mover

Tap a photo to enlarge it; use the arrow keys to move between photos.

4,000 CFMon high
18-inchblade
2speeds
1/4 HPmotor

See price on Amazon

Amazon shows the current price, delivery and seller. As an Amazon Associate we earn from qualifying purchases.

Is 4,000 CFM enough for my room?Compare this fan

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

MOUNTO AM25AX Axial Air Mover is listed at 4,000 CFM with a listed 0.25 HP motor.

What works

4,000 CFM on high from an 18-inch blade
2 speed settings
1/4 HP motor

What doesn't

No published noise (dBA) rating

Who it's for

Good fit

Drying or circulation work that matches the listed configuration

Look elsewhere if

Permanent building ventilation, which needs a fixed exhaust fan

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

See price on Amazon

MOUNTO AM25AX Axial Air Mover is the AM25AX 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: 18 inAmazon listing ↗
Electrical match
Does the documented electrical information match the planned supply? Confirm the installed unit’s nameplate and installation instructions before connecting it.
- Current: 3.6 AAmazon listing ↗
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): 4,000 CFMAmazon listing ↗
Location requirements
Does the site require an environmental rating or guard? Neither is listed here.

Put 4,000 CFM in context

The MOUNTO AM25AX Axial Air Mover has a listed airflow of 4,000 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	101×	36 s
Two-car garage	22 × 20 × 9 ft · 3,960 ft³	61×	59 s
Workshop	40 × 30 × 12 ft · 14,400 ft³	17×	3.6 min
Warehouse bay	100 × 50 × 16 ft · 80,000 ft³	3×	20 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 5 listed specifications