Features:ALL DELONGHI AIR PURIFIERS ARE CADR-CERTIFIED BY AHAM (The Association of Home Appliance Manufacturers). Look for the CADR-Certified Seal on all DeLonghi air purifiers. The Seal means that our air purifiers have been tested for their performance. To learn more about air cleaner certification please visit www.cadr.org.This DeLonghi air purifier has a rating of 130 CADR (Clean Air Delivery Rate) and a recommended room size of 20’ X 10’ (200 SQ. FT.)3-STAGE FILTRATION SYSTEM AND IONIZER Clean Air Delivery Rate (CADR) of 130 revitalizes air with 3 filters: a washable pre-filter a True HEPA filter and an active carbon filter. A separately controlled ionizer provides added purification and helps freshen air.POP-UP FILTER CARTRIDGE makes changing the filter easy. 3-in-1 system combines all three filters in a single convenient unit. Filter change indicator helps you know when to replace the filter.TOTALLY SEALED FILTRATION SYSTEM and unique curved design eliminate air bypass for efficient clean air delivery.3 PLACEMENT OPTIONS: vertical horizontal or wall-mountable. Lets you position the unit virtually anywhere in the home or office providing ultimate convenience and maximum efficiency. The unit also has rubber feet for stability.4-SPEED FAN designed for quiet flexible operation.EASY-TO-CLEAN GRILLEDESIGNED AND ENGINEERED IN ITALY