Yescom 3500mg Ozone Generator Commercial Industrial O3 Air Black Purifier Deodorizer Sterilizer w/Handle Overall dimension (LxWxH): 8 1/16" x 6 11/16" x 5 3/4" (204x170x146mm) Ozone output: 3500mg/h; Ozone concentration: 15-25mg/l; Timer function: 0 to 120 minutes Great at removing odors caused from mold odor, smoke, mildew, air borne viruses, air pollution, pet odors etc. Ozone Concentration: 15-25mg/l, Ozone output: 3500mg/h Great at removing odors caused by: Mold odor/ Smoke/ Mildew/ Air borne viruses / Air pollution / Pet odors etc.