Negative pressure fans are commonly known as ventilation fans, exhaust fans

Cooling principle: negative pressure fan to the indoor turbid air, hot air quickly discharged out in large quantities, the formation of indoor negative pressure state, atmospheric pressure to achieve air pressure balance (pressure difference) outdoor fresh air from the windows and doors to naturally make up to the indoor, the formation of highly efficient ventilation convection effect, to solve the indoor/outdoor temperature difference, to improve the oxygen content of the air, so as to achieve the effect of indoor indirect cooling to the XiaWeiYi 45k-type negative pressure fan, for example, per Hourly energy consumption of 1.1kw, can be discharged 45000 cubic meters / hour of large air volume, equivalent to 45 powerless wind balloon.

Application Scenario: This model is mainly suitable for industrial workshops, agricultural breeding places to ventilate the air and heat, can be used in the roof type and side-wall installation, each 45k negative pressure fan can make 45,000 cubic meters of space every hour to change the air once.

Product features: low rotational speed, low noise, low energy consumption, large exhaust air volume, durable, low maintenance costs, installed on the roof or side wall does not take up space in the workshop.