In the design of hospital clean air systems, controlling pressure differential is a vital factor to prevent infections.
1. Positive Pressure Room
Principle: The pressure inside the room is HIGHER than outside. Air only goes from inside to outside.
Application: Operating Theater (Operating Theater). The purpose is to protect patients undergoing surgery. When the door is open, clean air will blow from the room, preventing bacteria from the hallway from entering the surgical wound.
2. Negative Pressure Room
Principle: The pressure in the room is LOWER than outside. Air only flows from outside to inside.
Application: Infectious disease isolation room (such as Covid-19, Tuberculosis). The purpose is to protect the community. Air containing pathogens in the room will not be able to escape into the hallway, but will be sucked through the HEPA + UV light filtration system for treatment before being released into the environment.
VAF provides solutions BIBO (Bag In Bag Out) Specialized for safe filter replacement for these negative pressure rooms.
