UK Plug MAXIMUM COVERAGE: Cleans small spaces up to 36 sq m in one hour, 18 sq m in 30 minutes (CADR 120). Ideal for homes, apartments, bedrooms, living rooms, offices, schools, universities, classrooms, hospitals, restaurants, and other businesses. HEPA H13 FILTRATION: Trusted to remove 99.9% of harmful particles including allergens, odors, VOCs, smoke, pollen, pet dander, dust, smog, contaminants, and more down to 0.1 microns in size. Captures finer particles than HEPA H11 (0.3 microns). ULTRA QUIET: Choose from 3 fan speeds, with the lowest setting operating virtually silent. Runs at 220 Volts at a maximum noise level of 55 dB. For the most discreet operation, enable sleep mode to completely dim the unit's panel lights. EASY TO USE FEATURES: Control panel includes fan speed, night light, sleep mode, and a filter replacement indicator so you know when it's time to replace the 360 degree filter. QUALITY TESTED & BACKED: CARB, ETL, and Energy Star certified. Backed by a registered Lifetime Warranty when genuine Medify replacement filters are used. The replacement filter (B097G37TH5) lasts 2,500 hours or about 3-4 months.