• Nispira 3-in-1 Filter Replacement compatible with Solair Soltek Air 3500 Air Purifier & Ozone Generator.
• HEPA filter helps remove up to 99.97 percent of airborne particles as small as 0.3 microns.
• Photocatalytic removes virus and harmful gases such as exhaust fumes, volatile organic compounds
• Pre Filter prevents big particles like hair, dust and debris from getting inside the filter and the device. It helps to extend the filter's life span
• 3 Filter included. Suggest to replace every 6 months to optimize the performance and remain the indoor air fresh.Quality meets or exceeds leading national brands