Feature●Easy one-button operation: fan adjustment for optimal air. Reduced speed at night. No timer, rolling or built-in sensors.●FAST AIR CLEANING: Blueair HEPA Silent technology: cleans faster, quieter than HEPA alone. Large space (approx. 50 m²) in 12.5 minutes, extra large space (up to 241 m²) in 60 minutes. on a high setting.●ONE OF THE QUIEST AIR PURIFIERS: Quieter (31dB) than whisper on low; ENERGY STAR certified - uses less energy (30W) than a bulb on low●FIGHT AGAINST ALLERGIES: Helps reduce allergens and pollutants that trigger allergy and asthma symptoms●Removes odour and particles up to 0.1 micron: ideal for forest fire season: removes 99.97% smoke, dust, viruses, pet hair. Carbon filter retains smoke, pet and cooking odours.Descriptionclass="celwidget pd_rd_w-v4zNL pd_rd_r-PTZFAWZD5Y0C74KB01FJ pd_rd_wg-bkVkY" data-feature-name="aplus" data-csa-c-type="widget" data-csa-c-content-id="aplus" data-csa-c-slot-id="aplus_feature_div" data-csa-c-asin="" data-csa-c-is-in-initial-active-row="false" data-csa-c-id="4tful7-mdo1t-s0h6ge-evr0km" data-cel-widget="aplus_feature_div">