(1) From the air that passes through the filter, tested with NaCl aerosol by a third-party laboratory.
(2) Calculated according to NRCC-54013 test standard, using cigarette smoke CADR tested according to GB/T18801-2015.
(3) CADR is tested by a certified third-party lab, according GB/T18801-2015.
(4) Philips air purifiers have higher Clean Air Delivery Rate and energy efficiency with a NanoProtect HEPA filter than with a HEPA H13 filter, tested to GB/T 18801.
(5) The average sound level, based on GB/T4214.1-2017 (IEC 60704-1 - 2020, MOD). The sound level may change due to the conditions in your room and the location of the device.