About Calculating the Airflow Required for Air Cleaning
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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.
About Exhaust Fans
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Office Floor Fans
Tilt the head of these fans to direct air where it's needed.
Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | No. of Speeds | Current, A  | Ht. | Wd. | Dp. | Cord Lg., ft. | Housing Material | Blade Material | Guard Material | Specifications Met | Each | |
120V AC, Single Phase—Three Prong Plug | |||||||||||||
Non-Oscillating, Tilting | |||||||||||||
| 24" | 6,800 | 2 | 2.2 | 30" | 29" | 15" | 10 | Polyethylene Plastic | Aluminum | Steel | C-ETL Listed, ETL Listed | 0000000 | 0000000 |
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.
Fans | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Collars | ||||||||||||||||
| 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 | Each | Each | |||
120V AC, Single Phase—Hardwire | |||||||||||||||||
| 3 | 24" | 4,800 | 56 dB @ 5 ft. | 850 | 1 | 1/2 | 30" | 30" | 15 1/2" | 45 | 104° F | Steel | Aluminum | 0000000 | 0000000 | 0000000 | 0000000 |
230/460V AC, Three Phase—Hardwire | |||||||||||||||||
| 5 | 24" | 4,600 | 56 dB @ 5 ft. | 850 | 1 | 1/2 | 30" | 30" | 15 1/2" | 70 | 104° F | Steel | Aluminum | 0000000 | 00000000 | 0000000 | 000000 |
| 5 | 24" | 6,800 | 72 dB @ 5 ft. | 1,750 | 1 | 1 | 30" | 30" | 12 1/4" | 78 | 104° F | Steel | Steel | 000000 | 00000000 | 0000000 | 000000 |
Fume Hoods
Pair these hoods with an exhaust system to contain harmful fumes, vapors, and gasses while venting them away from work spaces—they protect users from inhaling or coming in contact with them. To access the enclosed space, these hoods have an adjustable sliding window, which also lets your exhaust system pull air from the outside.
Polyethylene hoods have a molded one-piece construction with rounded inside corners to prevent gaps and crevices, making them easy to wipe clean.
Overall | Opening | Windows | Outlets | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Recommended Airflow, cfm | Height | Width | Depth | Height | Width | Number of | Material | Clarity | Number of | OD | Gender | Each | |
Polyethylene Plastic with Adjustable Sliding Window | |||||||||||||
| 350 | 30" | 42" | 20" | 14 1/8" | 34 1/2" | 1 | Acrylic Plastic | Clear | 1 | 6" | Male | 00000000 | 000000000 |