In recent years, with the outbreak of environmental air pollution, people pay more and more attention to the air quality in their environment.As early as 2011, the world health organization noted that indoor air pollution was five to 10 times higher than outdoor air pollution.Bacteria, viruses, odors, and chemical gases suspended in the air all threaten human health.Especially just decorated the new house, to the resistance of the old, children, pregnant women and other vulnerable groups is very big harm.As the most effective product to improve air quality, air purifier has become the standard of many families.