HealSmart 4'' Inline Booster Fan, 100 CFM Duct Fan for HVAC Ventilation, Bathroom, Basemen and Attics, Silver

Application: help boost airflow in HVAC (heating, ventilation and air conditioning) units to remove exhausts and odors from grow rooms, kitchens, bathrooms, workshops, basements, attics etc. | Specification: diameter: 4inch; Air flow: 100 CFM; Speed: 2930 RPM; Voltage: 110/120V; Wattage: 12W; Noise level: 30 db. Max operating temp of motor is 130 / 266; Max ambient temp is 60 / 140. | Advantages: superior balanced blades for long service life & quiet operation; Motor features a permanently lubricated bearing that operates quietly and requires no maintenance. | Premium Ventilation: quickly and efficiently move a vast amount of air; Temperature control-cooling rooms that tend to accumulate too much heat. | Note: if any other materials/particles get into the duct fan and get the blade stuck, users are to turn off the power immediately, clean it up, turn the power back on when handled properly.