*The efficiency of particle removal during filter passage at the filter was tested in the IUTA laboratory in Germany in 2020. The size of viruses and bacteria was taken into account, as published in the 2008 Microbiological Risk Assessment Report of the World Health Organization (WHO).
**UV-C light eliminates 99.9% of viruses and bacteria. The 99.9% H1N1 viral destruction rate has been tested in an independant laboratory in accordance with the Chinese Ministry of Health's Technical Standard forDisinfection2002 (Technical Standard for Disinfection 2002). Tested for bacterial herbicide rate in an independant laboratory according to GB15981-1995. Captures fine particles of 0.004 μm.
***According to QB/T2761-2006 standard, HESA material was tested for 24-hour gas sampling rates in an independant laboratory without active airflow. Capacity compared to conventional activated carbon material with the same weight. Conduct benchmarking test in the internal test laboratory.