The Blueair 603 Air Purifier uses HEPASilent filter technology, a special ionizer, and a powerful energy-efficient fan to purify your air faster and quieter than ever before. This unit is specifically designed for those who struggle with allergies and/or asthma or who simply want to breathe cleaner air at an affordable price

10 Year Warranty:  this air purifier is guaranteed to be free from defects in material or workmanship for a period of ten (10) years from the date of purchase provided that you have completed and returned your warranty registration to Blueair, and that the filters are replaced with original Blueair replacement filters at least once every six (6) months (the Limited Warranty). Within the first 30 days of purchase Blueair will replace the defective unit at no charge to you and reimburse any shipping charges.