What is negative pressure?

First, understand that standard atmospheric pressure is 760 mm mercury column, approximately equivalent to 10030 Pascals (Pa). When atmospheric pressure inequality occurs in the same environment, negative pressure is generated. This is mainly manifested as an inequality between the pressure in an enclosed space and the outdoor atmospheric pressure. For example, if a kitchen range hood and exhaust fan are installed indoors, and when they operate, air is exhausted outdoors without timely replenishment, negative pressure is generated.

What are the health hazards of working in a negative pressure environment?

Can ventilation, air conditioning, and fresh air systems solve negative pressure problems?

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What is negative pressure?

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