UL E17814 Exhaust Fans | McMaster-Carr

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About Exhaust Fans

About Sound Levels

To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.

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.

Interior-Wall-Mount Lavatory Exhaust Fans

Also known as a room-to-room exhaust fan, this fan exhausts air and humidity directly into another room without using duct.

Energy efficiency requirements restrict sales to the listed areas.

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.	No. of Speeds	Control Type	Housing Material	Features	Specifications Met	Cannot Be Sold To		Each
120V AC, Single Phase—Hardwire
180	50	13 1/2"	13 1/2"	11 1/2"	11 1/2"	3"-5 1/2"	Variable	Knob	Steel	Adjustable Mounting Sleeve	UL Listed	CO, DC, MA, MD, NJ, NV, NY, OR, RI, VT, WA	0000000	0000000

Ceiling-Mount Lavatory Exhaust Fans

Use these fans to draw stagnant and humid air out of a room.

For Round or Oval Duct

	For Duct				Guard		For Opening
For Duct Dia.	Oval Ht.	Oval Wd.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Wd.	Dp.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met		Each
120V AC, Single Phase—Hardwire
3"	2"	4"	80	28	13 3/4"	13"	10 1/2"	4"	Steel	Yes	7/16"	Ceiling, Wall	Backdraft-Preventing Damper	C-UL Listed, UL Listed	0000000	0000000

Ultra-Quiet Ceiling-Mount Lavatory Exhaust Fans

Keep noise to a minimum with 1/2" thick acoustical insulation and vibration-resistant motor mounts. Use these fans to draw stagnant and humid air out of a room.

Speed controls are optional. They fit single-gang electrical boxes.

For technical drawings and 3-D models, click on a part number.

For Round Duct

Fan for Round Duct

Speed Control

Exhaust Fans
			Guard										Speed Controls
For Duct Dia.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met		Each		Each
120V AC, Single Phase—Hardwire
8"	130	10	14"	14"	Steel	Yes	13/32"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	0000000	0000000	000000
8"	200	28	14"	14"	Steel	Yes	13/32"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	000000	0000000	00000
8"	230	32	14"	14"	Steel	No	1/2"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	000000	0000000	00000
8"	270	33	14"	14"	Steel	Yes	13/32"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	000000	0000000	00000
8"	310	41	14"	14"	Steel	Yes	13/32"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	000000	0000000	00000

For Rectangular Duct

Fan for Rectangular Duct

Speed Control

Exhaust Fans
For Duct				Guard										Speed Controls
Ht.	Wd.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met		Each		Each
120V AC, Single Phase—Hardwire
5"	19"	480	40	23 1/4"	14"	Steel	No	1/2"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	0000000	0000000	000000