The 62-450 is designed for smaller workshops that measure up to 20’x20’x8’, for cleaning and circulating air up to 7 Times Per Hour. Choose between 3 speeds – 250, 350 or 450 CFM depending on the amount of filtration needed. 3 timer settings also let you filter shop air for 1, 2 or 4 hour segments before it automatically shuts off. The 1/4HP motor is very quiet and the system can be operated directly, or with its remote control. 2-filters change easily without tools. Air Filtration Keeps Your Shops Air Breathable 3 Speeds 250, 350, Or 450 CFM 3 Timer Settings 1, 2 Or 4 Hours Convenient Remote Quick Release Latch System Easily Mount On Work Bench Or Mount From Ceilings SPECIFICATIONS Motor Horsepower 1/4 HP Motor Amps 1.5 Motor Volts 120V, 60 Hz Speeds (CFM) 250,350,450 CFM Cubic Feet Per Minute 450 CFM Filter Size (Nominal) 9-1/2” x 16” x 2” Filter (Microns) Outer 5, Inner 1 Sound Rating on High 57 / 64 / 68dB Timer Settings 1, 2, or 4 Hour Segments Cleans 20’ x 20’ x 8’ Room 5 / 6.5 / 8 Times per Hr Cabinet 20 Gauge Steel Blower Wheel Material Steel Blower Type Squirrel Cage Overall Length 19.75” Overall Width 16.75” Overall Height 10” Overall Net Weight 28.5 lbs Warranty 5 Years Operator's Manual