1.4 layer filtering system 2.Air pollution index detection and Automatic startup 3.High Efficiency,Energy Saving,Multifu 1.electronic air cleaner2.Product Functions: dust abatement, 3.sterilization, 4.formaldehyde removal 5.oxygen monitoring. Brief introduction of our company1.Specialize in metal processing & fabrication for 30 years.2. Professional design and manufacturing CNC equipment3.More ...