Positive Pressure Door Lock

In the event that there was a leak or a door opened clean air would be forced out of the cleanroom rather than unfiltered air being allowed into the cleanroom.

Positive pressure door lock.

Use is also made of positive pressure to ensure there is no ingress of the environment. In medical settings these rooms prevent the spread of infectious contaminants and maintain sterile or restricted spaces and are also referred to as protective environments positive pressure rooms and airborne infection isolation rooms aiir negative pressure rooms. If you have an hvac positive pressure problem the air pressure inside your space is too high and air is being forced out. Sometimes doors are required to perform conflicting functions simultaneously.

For example in order to comply with the american disabilities act a particular door may be restricted to a door closer that requires as little as five pounds of opening force. What is positive air pressure. This same door may be required to lock automatically without fail. If the outdoor temperature is lower than the indoor temperature this can create high negative pressure within a building s lower levels and high positive pressure in the upper levels this pulls cold outdoor air in at the lower levels and pushes heated indoor air out at upper floors.

Temperature an extreme difference between interior and exterior temperatures can cause building. This pressure can cause doors opening outward to fly open by themselves potentially harming people. Effective positive and negative pressure rooms are an important part of industrial climate control systems. Positive pressure is used in cleanrooms where the priority is keeping any possible germs or contaminants out of the cleanroom.

Consequently if there is any leak from the positively pressured system it will egress into the surrounding environment.