As an Austin Air authorized dealer, this item comes with a 5 Year Warranty. 30-Day, No-Questions-Asked, Money-Back Guarantee In the unlikely event that you're not completely satisfied with your Austin Air cleaner, return it within 30-days, no-questions-asked. 5-Year Mechanical Warranty Your Austin Air cleaner is warranted to be free from defects in material and workmanship for a period of 5-years from the date of purchase; provided your Austin air cleaner was operated under normal residential use and that you have completed and returned your warranty registration to Austin Air Systems. 5-Year Pro-rated Filter Warranty Austin Air offers a 5-year pro-rated filter warranty, by far the most comprehensive in the industry. No more costly filter replacements every few months or even years. Austin Air filters are designed to last for an amazing 5-years.