New MTN HEPA UV Ionic Ionizer Ozone Generator Air Purifier Freshener Cleaner Portable and compact design, No Duct work Required Commercial grade ozone generator/air purifier with Heavy Duty Steel shell Multi-function: Ozone + UV + Negative ION + HEPA + Pre-Filter + Photo-Catalytic Filter + Carbon Filter. Power: 40 Watts. ION output: 5 x 106cm3 (or2.5 x 106/cm3) UV Spectrum: 20w/cm2(at 10cm-distance). Sound Level (DB): Silent20/Low35/Med45/High50