Breathe easier: Molekule uses nanotechnology to break down pollutants on a molecular level. Allergens, mold, bacteria, viruses and airborne chemicals are completely eliminated, not just caught. This new technology is the only one able to destroy pollutants of any size including those 1000x smaller than what a HEPA filter can catch.Molekule gets the job done with a light-activated nanoparticle filter. The PECO filter works by light shining onto the filter membrane, coated with proprietary nanoparticles. This creates a catalytic reaction on the filter surface that breaks down the molecular structure of pollutants. PECO is the successor of PCO technology which works on a similar principle but is much less effective. This technology has been developed over the past 20 years at the University of Florida, funded by the EPA.