That’s the sort of question Lennox wanted homeowners’ guests to ask when the company released the 2018 IAQ category gold winner, the Lennox® PureAire™ S. This air purification system builds upon the cleaning technology of the Healthy Climate® PureAir, adding smart features and enhancements that enable dealers to offer a whole new level of serviceability, according to Lennox. PureAir technology utilizes a MERV 16 filter with carbon to provide hospital-grade particulate filtration along with a UVA light and proprietary catalyst, which react together to destroy harmful gases and odors.