This super quiet tower air cleaner with HEPA and VOC filters will keep you safe from air borne contaminants, such as dust, pollen, mold spores, smoke and pet dander. Effectively removes volatile organic compounds (VOCs), odors and harmful particles, for rooms up to 200 sq. ft. Designed to operate continuously for up to 1, 400 hours. HEPA Filter: A high-efficiency air filter that captures 99. 5% of airborne pollutant particles as small as 0. 3 microns, including spores, pollen, mold, pet dander and dust. VOC (Formaldehyde) Filter: Formaldehyde and other VOCs can be found in building materials, foam insulation, household products and fuel-burning appliances. They can prompt headaches, vomiting, rashes, asthma attacks and some are suspected to cause cancer. Effectively removes formaldehyde, toluene and VOC. Factory tested: VOC removal efficiency reaches 95%, under the following conditions: 1m3 test room; initial concentration: 1. 9-2mg/m3; 4hrs testing. To read more on VOCs: http: //www. epa. gov/iaq/voc. html#Health Effects Ionizer: Negative ions are released into the room and attaches themselves to dust, pollen, smoke and pet dander (which are positively charged) to form larger particles. These larger particles becomes too heavy to float and drops to the ground, thus effectively removed from regular air circulation and your respiratory system. Specifications Input voltage: 120V / 60Hz Power consumption: 0. 34A Room size: up to 200 sq. ft. HEPA filter lifespan: 2, 800 hours VOC filter lifespan: 1, 400 hours Unit Dimension: 7. 68(W) x 10. 35(D) x 25. 39(H) in. Net / Gross weight: 13/15 lbs