The negative pressure fan is designed using the principle of air convection and negative pressure ventilation. The function is very powerful. It is generally installed outside the shop window, generally chooses the downwind, draws the wind out, and extracts the odor gas; it is mainly used in high temperature or smelly workshops, such as heat treatment plant, casting factory, plastic factory, aluminum profile factory, shoe factory, leather goods factory. , electroplating plants, various chemical plants; and employee-intensive enterprises: such as garment factories, various assembly workshops, Internet cafes; and horticultural greenhouses to cool down the greenhouses, livestock farms to cool down; and especially suitable for places that need to cool down and need a certain humidity: Such as cotton spinning mills, wool spinning mills, weaving mills, chemical fiber mills, warp knitting mills, knitting mills, and other textile mills, warehousing and logistics, including multi-smoke, sultry odor kitchen and canteen. Any machine with improved ventilation can improve the cooling effect by 90%-97%.

1. Agriculture: Negative pressure fans were used in greenhouses for farming, and orchids, or clock plants, used negative pressure fans.

2, animal husbandry: extended by the greenhouse seeds, is the use of animal husbandry. It is well known that the environment of chickens, ducks and pigs directly affects the yield and survival rate. In other words, the quality of the environment is related to the income of livestock.

3, industry: garment factory, shoe material factory, toy hardware factory, etc., negative pressure fans can be seen everywhere in various industrial fields.

4, public places: the common canteen is basically installed negative pressure fan, low cost and high efficiency, but also can improve the dense environment of dense population. There are also some shopping malls, auditoriums, stadiums, stations, hospitals, etc. can be used.

The negative pressure fan has very good effect and high efficiency. The blinds are automatically closed and closed to achieve dustproof, waterproof and beautiful appearance. It can be used for both air blowing and ventilation. It is the best choice for cooling and ventilation in modern workshops. The environmentally-friendly and energy-saving negative pressure fan will become the mainstream of the ventilation and cooling equipment market.