About Exhaust Fans
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About Sound Levels
Measured in decibels (dB), volume ratings indicate how much noise equipment makes. Some common volume levels include a whisper @ 20 dB, a refrigerator @ 40 dB, a conversation @ 60 dB, and a light machine shop @ 90 dB. OSHA recommends hearing protection for exposure to 80 dB and greater.
Hanging Box Fans

Easily hang these fans from your ceiling using the attached bracket and a mounting chain kit (sold separately). They're more powerful than our standard box fans. Made with a heavy duty 12-gauge welded wire mesh guard, these fans will stand up to tough environments. Plastic guard clips help reduce vibration between the housing and the guard, making these fans quieter. They require little maintenance thanks to their totally enclosed, high-efficiency motor and sealed ball bearings.
Belt-drive fans are quieter and have a longer life span than direct-drive fans because their parts can be replaced if worn or damaged.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||||||
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Blade Dia. | Airflow, cfm | Motor Speed, rpm | No. of Speeds | Voltage (Current) | Power, hp | Ht. | Wd. | Dp. | Drive Type | Housing Material | Blade Material | Mounting Fasteners Included | Mounting Hole Dia. | Each | |
Three Phase—Hardwire | |||||||||||||||
Non-Oscillating | |||||||||||||||
55" | 29,600 | 550 | 1 | 208-230V AC (6.2 A) 460V AC (3.10 A) | 2 | 66" | 66" | 23 3/4" | Belt | Galvanized Steel | Steel | No | 3/8" | 0000000 | 000000000 |

Chains | ||||
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No. of | Lg. | Includes | Each | |
3 | 72" | Six Threaded Connecting Links, Three Eyebolts, Six Nuts for Eyebolts | 0000000 | 000000 |
Exterior-Wall-Mount Exhaust Fans

Good when you don't have room to mount an exhaust fan inside your facility, these fans attach to openings in outside walls. Use them to draw stagnant and humid air out of a room or area.
Direct-drive fans have fewer moving parts than belt-drive fans, so they’re easier to maintain. Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments. They mount through the wall, so you'll need to cut a hole on the inside of the wall as well.
Note: Airflow depends on the resistance created by louvers, filters, and ductwork in your system. This resistance, known as static pressure (SP), is measured in inches of water.
For technical drawings and 3-D models, click on a part number.
For Opening | Overall | ||||||||||||
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Blade Dia. | Airflow @ Static Pressure | Drive Type | Motor Speed, rpm | Power, hp | Dia. | Ht. | Wd. | Dia. | Dp. | Motor Enclosure Type | Includes | Each | |
120/230V AC, Single Phase—Hardwire | |||||||||||||
36" | 5,800 cfm @ 0.2 in. of H₂O 10,500 cfm @ 0 in. of H₂O | Direct | 825 | 1/2 | 36" | 44" | 44" | 53" | 57" | Totally Enclosed | Louvers | 0000000 | 000000000 |
High-Output Spark-Resistant Blowers

Powerful and durable, these blowers are able to blow air through larger systems that have more airflow resistance than standard spark-resistant blowers can handle. They have an aluminum housing for spark resistance. They install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting. All blowers have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||||||
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Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Outlet Dia. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Wt., lbs. | Temp. Range, °F | Mount. Fasteners Included | Mount. Hole Dia. | Each | |
With Round Outlet and Inlet—Totally Enclosed Motor Enclosure | |||||||||||||||
230/460V AC, Three Phase—Hardwire | |||||||||||||||
460 cfm @ 5 in. of H₂O 520 cfm @ 3 in. of H₂O | 80 dBA @ 15 ft. | 3,450 | 1 | 5" | 6" | 9 3/4" | 18" | 14 1/2" | 16 1/8" | 65 | 0° to 100° | No | 7/16" | 0000000 | 000000000 |
Machine-Cooling Fans

Cool large machinery such as transformers. Fans have a totally enclosed motor enclosure for use in dirty, dusty, and damp environments.
Optional mounting kit includes a bracket and hardware for attaching fans to machinery.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||||
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Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | Power, hp | Dia. | Dp. | Fan Head Movement | Blade Material | Guard Material | Mounting Fasteners Included | Mounting Hole Dia. | Each | |
120V AC, Single Phase—Hardwire | |||||||||||||
16" | 4,500 | 68 dBA @ 6 ft. | 1,750 | 1/2 | 20 1/2" | 12 1/4" | Non-Oscillating | Aluminum | Galvanized Steel | No | 1/2" | 0000000 | 0000000 |
Optional Mounting Kit | 0000000 | Each | 000000 |