The NIKRO #CH2000 Ceiling Mounted Air Cleaners have been engineered specifically for general ventilation and filtering applications. The uniquely designed 2-stage filtration system with 95% final filter (optional 99.97% H.E.P.A. Filter is available) make this unit ideal for capturing welding smoke, rubber smoke, plastic smoke, fumes, wood dust, and other particulate, returning clean air back to the work place. When larger areas are to be cleaned multiple units can be strategically placed for most effective cleaning. These air cleaners reduce maintenance costs, keeping shops cleaner and safer. They provide greater worker visibility, cleaner breathing air, and prevent accidents by removing oil mists and dust before they settle on floors and machinery Easily installed, no outside ventilating is needed and no additional ductwork is required. When looking for economical solutions to maintaining a safe, clean shop, protecting workers, and complying with O.S.H.A. and E.P.A. standards ... Turn to NIKRO for a safer environment!