1, environmental protection air conditioning in the social application of dense or short time and need to quickly cool places, such as: auditorium, conference room, church, school, canteen, gymnasium, exhibition hall, shoe factory, clothing factory, toy factory, vegetable market, etc.;

2, there is heating equipment or high temperature production places, such as: mechanical processing, injection molding, electroplating, metallurgy, printing, food processing, glass, household appliances and other production workshops: shopping malls, supermarkets, amusement parks, casinos, waiting rooms; Suitable for agricultural scientific research and cultivation center or base.

3, there are places with strong smell of polluting gas and large dust, such as: hospital hall, waiting room, kitchen and chemical plant, plastic factory, electronics factory, chemical fiber factory, leather factory, spraying screen printing factory, rubber factory, printing and dyeing factory, textile factory, breeding factory and so on.