The Photox™ system is not only effective but also safe and easy to use. The system oxidizes airborne pathogens inside the device leaving no waste and requiring no filters for disposal. Other purification systems trap, rather than destroy, airborne contaminants on filters which then must be handled by the user for proper disposal. No harmful byproducts such as ozone are emitted during the process. Plus, the Photox™ system destroys viruses, bacteria, VOCs, gases, chemical vapors and odors.