Lowe's does offer a wide selection of HEPA certified air purifiers. Several of the more common brands offered in the store include Alen, BluAir, Fellowes and Idylis.
Though the individual prices and square footage treated vary, BluAir seems to be the higher-priced air purifiers, with some costing upwards of $800 as of 2015. The best-selling air purifier with a HEPA filter is the Winix four-speed HEPA air purifier. It treats a room up to 350 square feet and is also Energy Star certified. The air purifier with the highest customer ratings is the BluAir 580 square feet air purifier, which is also HEPA and Energy Star certified. The air purifier has over 40 reviews at an average score of 4.83 stars out of five.