Air flow 420 CBM/h CADR 170 Washable prefilter for large particles and HEPA protection Long-lasting True HEPA type filtration Activated carbon odour reducing filter Powerful UV germicidal irradiation Effective photocatalytic sterilization and VOC decomposition Ionizer assisting in particle removal Smoke & odour sensors Chip LED display with 15s auto dimming Indicators for filter change and UV tube maintenance 1/2/24/8 hours programmable timer 4 speed settings with quiet operation Remote control