Powerful Ozone System - This ozone generator produces O3 to disinfect by eliminating odors, microorganisms and other contaminants. O3 produces strong oxidation, destroys the microbial membrane structure by oxidation, and has the effect of eliminating bacteria and viruses. Second, O3 also removes musty odors, cigarette smoke, pet odors, cooking odors and other irritating odors from bedrooms, hotels, offices and kitchens. Features powerful specials. Two operating modes, automatic and manual. In Auto mode, you have the choice between 3 power modes, Natural (0.055 ppm), Comfort (0.065 ppm), Powerful (0.075 ppm). The International Ozone Association sets the internal ozone concentration at 0.1 ppm. Manual mode is very powerful at removing strong odors and should only be used in no man's land​​​​(Note: Please read the instructions before using manual mode). Mute and control panel lights - operates at a minimum decibel of less than 20 decibels, press and hold the "Settings" button for 3 seconds to turn off all lights and displays. Press any button to restore light and screen. This home air ionizer provides a very quiet and comfortable working or sleeping environment. No need to replace the filter. Don't worry if your air purifier filter is nearly depleted or if you have to buy and replace expensive air filters. The built-in nano-activated carbon filter can be used for up to 15 years. Negative Ionizer - Covering an area of ​​166 square feet, this deodorant can generate up to 1 million negative ions per second , making it perfect for offices, kitchens, bedrooms and bathrooms.