Health appliances have three meanings: appliances that can treat human diseases and promote human health, mainly referring to negative oxygen ion generators and other appliances that have recuperation and health care effects on human body; Electrical equipment that can promote human health, such as household appliances with sterilization and detoxification functions in recent years; Electrical equipment that is harmless to human health will not form harmful gases, electromagnetic radiation, noise pollution and other unhealthy factors during use.