What Is a Ventilation System?

Ventilation is a building environment control technology that controls the spread and hazards of air pollutants by means of ventilation dilution or ventilation exclusion to achieve indoor and outdoor air environment quality assurance. The ventilation system is to realize the function of ventilation, including a set of devices including air inlets, air outlets, air ducts, fans, cooling and heating, filters, control systems and other auxiliary equipment.

ventilation system

Classification by ventilation power:

First, use fresh outdoor air to renew indoor contaminated air due to living and living processes, so as to maintain the cleanliness of indoor air to a certain minimum level.

Second, to increase heat dissipation in the body and prevent discomfort caused by wet skin, this type of ventilation can be called thermal comfort ventilation.

Third, when the indoor temperature is higher than the outdoor temperature, the building components are cooled. This type of ventilation is called building cooling ventilation.

Important areas where ventilation works

Application area	For example
underground space	Urban rail transit (including subways), underground complexes, tunnels, civil air defense works, etc.
Clean technology	Semiconductor industry, precision machinery, aerospace, printing, medicine, pharmacy, genetic engineering, etc.
Safe ventilation	Mine ventilation, fire prevention and smoke exhaust, anti-terrorism attack ventilation, etc.
Industrial building ventilation	Cigarette factory, automobile manufacturing, foundry, etc.
Agriculture	Vegetable greenhouses, large-scale farming, botanical gardens, zoos, etc.
Special field	Hydropower station, communication room, etc.