LEVOIT lifestyle love fresh air? Bring it inside-whether to your living room spread, atop a small nightstand, or right next to you at your work. Let it do its work, Choose from low, medium, or high fan speed settings. Three stages of filtration (fine preliminary, true HEPA, activated carbon filters) tackle 99. 97% of particles and odors. Enjoy a cleaned-up breathing space All around it. And sit back knowing There's a 2-year that comes with lifetime support from LEVOIT customer service. what's in the box: 1 x true HEPA air purifier1 x fine preliminary filter1 x true HEPA/activated carbon filter1 x user manual note: 1. Power supply (only): AC 120V/ 60 Hz. 2. Please check the filter's color to relief your concern on whether the device is purifying the air. 3. To be Ozone-free, this LEVOIT air purifier is not an ionizer and does not use UV-C light. Ionic air purifier emits negatively charged ions into the atmosphere of a room. As a result, A small amount of ozone is produced. U-c light systems will produce "photolytic" Ozone When UV-C hits oxygen (O2) molecules. Ozone is an important part of the atmosphere, But ozone is harmful for the lungs at ground level. Effective Range: ? 129 ft² (12 m²), Operating Temperature: 14°F-104°F / -10°C-40°C, Noise Level: ? 50dB, Standby Power: < 0.8W