Room air purifiers, also known as room air cleaners, are portable electric appliances that have filters to remove fine dust, pollen and other particles from your indoor air. If you or a family member has asthma or allergies, putting air purifiers in the rooms you spend the most time in could be helpful. When shopping for air purifiers, choosing ENERGY STAR certified models can save you money now—with available rebate—and later, thanks to their improved energy efficiency. Why Purchase an ENERGY STAR Certified Air Purifier? Save energy. Qualifying models are 25% more energy efficient than standard models. Save money. You could save up to $16 annually on energy costs—or up to $144 over its lifetime.* Get instant discounts. Select models qualify for a $40 instant discount on your purchase price when you shop at Lowe's and The Home Depot. *Source: energystar.gov Questions? Check out our FAQs.