The HoMedics Air Purifier AP-25 features a true HEPA filtration that removes up to 99.97% of airborne allergens, as small as 0.3 microns. It captures and removes allergens, pollen, dust, smoke, pet dander, mould spores and germs. The carbon pre-filter reduces household odours and captures larger particles. Perfect for medium sized rooms, it has 3 speeds, replace filter indicators, a night mode and an auto-off timer for 2, 4, 8 or 12 hours. Includes 1 HEPA and 1 carbon pre-filter. HEPA filter lasts 5 times longer than conventional filters and removes allergens as small as dust mites and pollen. Suitable for room size up to 17.1m. Quiet operation. 3 speed settings. Auto shut-off. HEPA filter. 99% filtration rate. Filter included. CADR rating smoke 119. CADR rating pollen 142. CADR rating dust 134. Size H47.8, W45.8, D21.8cm. British Allergy Foundation approved. ECARF approved. Manufacturers 3 year guarantee.