
Cons: Visually unappealing, limited to small rooms.Pros: Auto-off timer, visual indicator to change filter.


This is a result of a ruling by the BBB National Programs’ National Advertising Review Board following a challenge by another air purifier company. The company rescinded early marketing claims like the speed with which it replaced the air in a room and the fact that it could “completely eliminate” allergens, bacteria, viruses and mold. While Molekule stands behind the unique technology in its air purifiers (and points to more than a dozen tests that demonstrate the efficacy of the technology), you might notice that Molekule no longer makes certain claims that appeared in older advertisements. The materials used to create the Molekule aren’t just functional the design is sleek and elegant, featuring a leather handhold strap and a machined aluminum case. It does this using a dual-filtration system: First, the pre-filter catches larger pollutants like dander and pollen then, the nano-filter cleans the air with a process called photoelectrochemical oxidation (PECO), claiming to eliminate airborne pollutants that are 1,000 times smaller than those the average air purifier can destroy. Unlike most other purifiers which have HEPA filters that collect particulates from the air, the Molekule actually removes indoor air pollutants and then destroys them.

This is one of the priciest air purifiers on the list, but for serious allergy-sufferers, it may be a worthwhile investment.
