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.
Light Duty Direct-Drive Wall-Mount Exhaust Fans with Louvers
These light duty fans are designed for use without duct. They come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area. All have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.
For technical drawings and 3-D models, click on a part number.
For Opening | Overall | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Ht. | Wd. | Dp. | Max. Ambient Temperature | Control Type | Frame Material | Blade Material | Mount. Fasteners Included | Mount. Hole Dia. | Specifications Met | Each | |
120V AC, Single Phase—Hardwire | ||||||||||||||||||
| 20" | 2,925 | 1,140 | 2 | 1/4 | 20 1/2" | 20 1/2" | 23" | 23" | 9 1/2" | 100° F | Pull Switch | Steel | Aluminum | No | 5/16" | UL Recognized Component | 00000000 | 0000000 |
| 24" | 3,400 | 1,140 | 2 | 1/4 | 24 1/2" | 24 1/2" | 27" | 27" | 9 1/2" | 100° F | Pull Switch | Steel | Aluminum | No | 5/16" | UL Recognized Component | 00000000 | 000000 |
| 30" | 3,950 | 1,140 | 2 | 1/4 | 30 1/2" | 30 1/2" | 33" | 33" | 9 1/2" | 100° F | Pull Switch | Steel | Aluminum | No | 5/16" | UL Recognized Component | 00000000 | 000000 |
120V AC, Single Phase—Three-Prong Plug | ||||||||||||||||||
| 20" | 2,925 | 1,140 | 2 | 1/4 | 20 1/2" | 20 1/2" | 23" | 23" | 9 1/2" | 100° F | Pull Switch | Steel | Aluminum | No | 5/16" | UL Recognized Component | 00000000 | 000000 |
| 24" | 3,400 | 1,140 | 2 | 1/4 | 24 1/2" | 24 1/2" | 27" | 27" | 9 1/2" | 100° F | Pull Switch | Steel | Aluminum | No | 5/16" | UL Recognized Component | 00000000 | 000000 |
| 30" | 3,950 | 1,140 | 2 | 1/4 | 30 1/2" | 30 1/2" | 33" | 33" | 9 1/2" | 100° F | Pull Switch | Steel | Aluminum | No | 5/16" | UL Recognized Component | 00000000 | 000000 |
Dust-Resistant Direct-Drive Wall-Mount Exhaust Fans
Better suited for dirty, dusty, and damp environments than standard direct-drive fans, these have a totally enclosed motor enclosure. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area.
Collars and louvers are sold separately. Use a collar to connect a wall-mount exhaust fan to a louver.
For technical drawings and 3-D models, click on a part number.
Overall | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Dp. | Wt., lbs. | Max. Ambient Temperature | Frame Material | Blade Material | Specifications Met | Each | ||
120V AC, Single Phase—Hardwire | ||||||||||||||||
| 3 | 20" | 2,925 | Not Rated | 1,140 | 2 | 1/4 | 23" | 23" | 12" | 35 | 100° F | Steel | Aluminum | UL Recognized Component | 0000000 | 0000000 |
Direct-Drive Wall-Mount Exhaust Fans
Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Hole | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Dp. | Blade Material | Guard Material | Dia. | Location | No. of | Each | |
| 20" | 2,900 | 65 dBA @ 5 ft. | 1,125 | 2 | 1/4 | 25 1/2" | 25 1/2" | 8 3/4" | Aluminum | Steel | 1/4" | Guard | 4 | 0000000 | 0000000 |
| 22 3/4" | 3,400 | 65 dBA @ 5 ft. | 1,125 | 2 | 1/4 | 29 1/8" | 29 1/8" | 8 1/2" | Aluminum | Steel | 1/4" | Guard | 4 | 0000000 | 000000 |
| 27 7/8" | 3,900 | 67 dBA @ 5 ft. | 1,125 | 2 | 1/4 | 35 1/4" | 35 1/4" | 8 1/2" | Aluminum | Steel | 1/4" | Guard | 4 | 0000000 | 000000 |