VEVOR 20 in Shutter Exhaust Fan 4499 CFM Wall Mount

Description

At a Glance

Built for large garages, workshops, barns, and equipment rooms, this 20 in shutter exhaust fan moves 4499 CFM and clears a 1,200 cu ft space (about 150 sq ft at 8 ft ceilings) in roughly 16 seconds. Automatic louvers seal the opening when the fan stops, the stepless controller keeps daily ventilation near 70 dB or lower, and the 1500 r/min motor with steel housing handles humid, dusty work spaces.

4499 CFMAirflow127 WPower120V / 60HzVoltage20 inBlade Size10 m/sAir Speed≤ 70 dBNoise20.86 lbsNet Weight

20 Inches of Fast Air for Shops and Equipment Rooms

The VEVOR 20 in shutter exhaust fan delivers 4,499 CFM at a brisk 10 m/s, the kind of air speed that clears dust and fumes from a machine shop or welding bay before they settle. The 127 W motor is a fair trade for the throughput.

Which Space Is This Size For?

Suits machine shops, equipment rooms, and barn workshops up to roughly 5,600 sq ft. Home garages are well served by 16–18 inch fans; 20 inches and up are for heavier workloads.

Powerful 4499 CFM Ventilation for Garages, Attics, and Workshops

Keep hot, humid, and stale air moving with the VEVOR 20 inch shutter exhaust fan. Rated at 4499 CFM with air speeds up to 10 m/s, this wall mount ventilation fan quickly clears heat, moisture, smoke, floating dirt, and odors from garages, attics, barns, greenhouses, and workshops. The variable speed controller lets you match airflow to the job, from a gentle breeze to full exhaust.

Automatic Louvers and Rain Protection

The automatic louvers open when the fan is running and close when it stops, blocking rain, dust, and small debris between uses. Combined with a sturdy, rust-resistant steel housing, this attic exhaust fan is built for damp environments where plastic fans fail.

Variable Speed Control for Every Space

The included stepless controller puts airflow at your fingertips. Whether you need continuous air exchange in a greenhouse or high-volume cooling in a workshop, the 1500 r/min AC motor delivers stable, low-noise performance on just 127 W.

Built to Last in Tough Environments

The steel housing provides high rigidity and resists deformation, handling damp conditions and rain better than plastic. It is a dependable choice for attic exhaust, garage cooling, barn ventilation, and greenhouse airflow projects.

Performance & Applications

Premium MotorPowerful AirflowReliable Durability

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VEVOR 20 inch exhaust fan premium motor performance

VEVOR 20 inch exhaust fan 4499 CFM powerful airflow

VEVOR 20 inch shutter exhaust fan reliable durability

Reliable OperationHassle-Free Installation

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VEVOR 20 inch exhaust fan reliable operation

VEVOR 20 inch shutter exhaust fan easy installation

AtticGarageBarnGreenhouse

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VEVOR 20 inch attic ventilation fan wall mount

VEVOR 20 inch garage exhaust fan cooling

Key Features

Electrostatic Coating

Rust-resistant finish helps this shutter exhaust fan stay sturdy for long-lasting use.

Spiral Fan Blades

Designed for smooth, powerful airflow, this attic fan delivers reliable ventilation you can count on.

Weather-Resistant Build

Built to help block dirt and water, these exhaust fans are ready for a variety of conditions.

Specifications

Brand	VEVOR
Item Model Number	HA-500M-110
Rated Voltage	120V 60Hz
Power	127 W
Air Speed	10 m/s
Airflow	4499 CFM
Speed	1500 r/min
Louver Opening Angle	≥ 50°
Noise	≤ 70 dB
Net Weight	20.86 lbs / 9.46 kg
Product Dimensions (L x W x H)	22.4 x 22.4 x 9.5 in / 565 x 565 x 240 mm

Contact our support team if you need help choosing the right exhaust fan for your space.

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Frequently Asked Questions

Q: How large a space will 4499 CFM ventilate?

A: At about 8 air changes per hour this fan covers roughly 4,200 sq ft at 8 ft ceilings, and it clears a 1,200 cu ft space (about 150 sq ft) in around 16 seconds at full speed. Spaces that only need 3 to 4 air changes per hour, such as open barns, can be much bigger.

Q: What is the difference between an exhaust fan and a ventilation fan?

A: The hardware is the same and the wording is not. Ventilation fan covers any fan that moves air, while exhaust fan describes removing stale, hot, or contaminated air. This unit exhausts to the outside, so replacement air comes in through an open door, window, or inlet vent.

Q: Can it be wall-mounted outdoors where it rains?

A: Yes, exterior wall mounting is a standard use. The automatic louvers close whenever the fan stops, keeping rain and debris out of the housing, and the steel body is finished for damp environments. It should not be left exposed to standing water.

Q: Is the 20 in model too loud for a workshop?

A: Noise is rated at 70 dB or lower at full speed, in the range of a shop vacuum running nearby. The stepless controller lets you hold a much quieter setting for normal ventilation and only use full power for heavy clearing.

Q: How many CFM do I need for a garage exhaust fan?

A: Start from 8 air changes per hour, which is room cubic feet x 8 / 60. A 7,000 cu ft shop with 10 ft ceilings needs about 933 CFM, so this 4499 CFM fan covers two- and three-car garages, welding bays, and barns with room to spare while still being turned down.

Q: Do I need ductwork or an electrician?

A: No. The fan mounts directly into a framed wall or gable opening using the included expansion bolts, anchors, and screws, then runs from a standard 120V outlet. There is no duct to install and no hardwiring.

Q: Should an inlet stay open while it runs?

A: Yes. Without an inlet the fan pulls against a vacuum and real airflow falls well under the rated 4499 CFM. Opening a door, window, or inlet vent on the opposite side of the room gives the strongest cross-flow.

Q: What is the shipping and return policy?

A: Orders ship free from a US warehouse, usually within 1-3 business days and arrive in 2-5 business days to the 48 contiguous states. The fan is backed by 30-day returns plus manufacturer warranty, and the PDF installation and operation guide is linked on this page.