The perfect combination of the highly efficient TSS air sterilizing technology and the award-winning design of theAirfree P series. The P series also incorporates a smooth, adjustable, blue night light.Airfree’s patented Thermodynamic TSS Technology destroys mold, dust mites, bacteria, viruses, pollens, pet dander, organic odors and other organic allergens. Airfree also reduces indoor harmful ozone levels. It is perfect for mold-contaminated areas as well as asthma and allergy sufferers. Airfree’s exclusive technology is completely silent and does not require any filters or maintenance.