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.
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. Belt-drive fans are quieter than direct-drive fans. They also last longer because their components can be replaced if damaged.
Fans with an open dripproof motor enclosure should be used in clean, dry, and indoor locations. You can use these fans with or without duct. To use them with duct, you'll need an angle ring (not included). 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.
Grilles (sold separately) have fixed blades.
Louvers (sold separately) are gravity operated. The blades open when air flows and close when it stops, preventing backdrafts.
For technical drawings and 3-D models, click on a part number.
Fans | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Opening | Overall | Grilles | Louvers | ||||||||||||||
| Blade Dia. | Airflow @ Static Pressure | Drive Type | Motor Speed, rpm | Power, hp | Dia. | Ht. | Wd. | Dia. | Dp. | Motor Enclosure Type | Includes | Each | Each | Each | |||
120V AC, Single Phase—Hardwire | |||||||||||||||||
| 7" | 190 cfm @ 0 in. of H₂O | Direct | 1,050 | 1/25 | 8" | 8" | 8" | 17 1/8" | 13" | Open Dripproof | __ | 000000 | 0000000 | 0000000 | 000000 | 0000000 | 000000 |
| 10" | 250 cfm @ 1/4 in. of H₂O 550 cfm @ 0 in. of H₂O | Direct | 1,050 | 1/25 | 10" | 10" | 10" | 21 1/8" | 16" | Open Dripproof | __ | 000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
| 13" | 1,400 cfm @ 1/4 in. of H₂O 1,600 cfm @ 0 in. of H₂O | Direct | 1,075 | 1/6 | 12" | 12" | 12" | 30 3/16" | 28 3/4" | Open Dripproof | __ | 000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
| 16" | 2,400 cfm @ 1/4 in. of H₂O 2,800 cfm @ 0 in. of H₂O | Direct | 1,075 | 1/3 | 14" | 16" | 16" | 34 11/16" | 30 7/8" | Open Dripproof | __ | 000000 | 00000000 | 0000000 | 000000 | 0000000 | 000000 |
120/230V AC, Single Phase—Hardwire | |||||||||||||||||
| 18" | 4,000 cfm @ 1/4 in. of H₂O 4,300 cfm @ 0 in. of H₂O | Direct | 1,125 | 3/4 | 20" | 20" | 20" | 39 7/16" | 35 5/8" | Open Dripproof | __ | 0000000 | 00000000 | 0000000 | 000000 | 0000000 | 000000 |
| 20" | 4,000 cfm @ 0.2 in. of H₂O 5,000 cfm @ 0 in. of H₂O | Direct | 1,725 | 1/3 | 20" | 25 3/4" | 25 3/4" | 29 1/2" | 40" | Totally Enclosed | Louvers | 0000000 | 00000000 | 000000 | 00 | 000000 | 00 |
| 24" | 5,300 cfm @ 0.2 in. of H₂O 7,300 cfm @ 0 in. of H₂O | Direct | 1,725 | 1/2 | 24" | 31 1/2" | 31 1/2" | 34 1/2" | 45" | Totally Enclosed | Louvers | 0000000 | 00000000 | 000000 | 00 | 000000 | 00 |
| 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 | 00000000 | 000000 | 00 | 000000 | 00 |
| 50" | 16,200 cfm @ 0.2 in. of H₂O 12,100 cfm @ 0 in. of H₂O | Belt | 1,725 | 1 | 50" | 56" | 56" | 63" | 47 1/4" | Totally Enclosed | Louvers | 0000000 | 00000000 | 000000 | 00 | 000000 | 00 |
230/460V AC, Three Phase—Hardwire | |||||||||||||||||
| 24" | 4,400 cfm @ 0.2 in. of H₂O 5,800 cfm @ 0 in. of H₂O | Direct | 1,720 | 1/2 | 24" | 31 1/2" | 31 1/2" | 34 1/2" | 45" | Totally Enclosed | Louvers | 0000000 | 00000000 | 000000 | 00 | 000000 | 00 |
| 36" | 6,700 cfm @ 0.2 in. of H₂O 11,200 cfm @ 0 in. of H₂O | Direct | 825 | 1/2 | 36" | 44" | 44" | 53" | 57" | Totally Enclosed | Louvers | 0000000 | 00000000 | 000000 | 00 | 000000 | 00 |
| 50" | 12,100 cfm @ 0.2 in. of H₂O 21,600 cfm @ 0 in. of H₂O | Belt | 800 | 1/2 | 50" | 56" | 56" | 63" | 47 1/4" | Totally Enclosed | Louvers | 0000000 | 00000000 | 000000 | 00 | 000000 | 00 |
Exterior-Wall-Mount Lavatory Exhaust Fans
Exhaust air and humidity directly into the outdoors without using duct. These fans cannot be sold to the regions listed due to local energy efficiency requirements.
For technical drawings and 3-D models, click on a part number.
Guard | For Opening | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Airflow, cfm | Volume, dBA | Lg. | Wd. | Ht. | Wd. | For Wall Thick. | Housing Material | Mount. Fasteners Included | Mount. Hole Dia. | Features | Specifications Met | Cannot Be Sold To | Each | |
120V AC, Single Phase—Hardwire | ||||||||||||||
| 200 | 59 | 11 1/2" | 11 1/2" | 14 1/4" | 14 1/4" | 4 1/2"-9 1/2" | Steel | No | 3/16" | Backdraft-Preventing Damper | UL Listed | CO, DC, MA, MD, NJ, NV, NY, OR, RI, VT, WA | 000000 | 0000000 |