This device belongs to the category of household appliances.

Humidifiers belong to the category of household appliances, specifically the category of "drying, ventilation and air-conditioning equipment" in the 11th class trademark registration. A humidifier is an appliance used to improve indoor air humidity by atomizing and releasing moisture into the air. Humidifiers can promote the precipitation of bacteria and viruses in the air and reduce the incidence of colds and respiratory diseases.