Negative air pressure means that the air pressure inside is lower than outside. In this case, for example, an oven or air conditioner has to work harder and use more energy to push the air. Positive air pressure means that the pressure inside is higher than outside and air is trying to escape. In other words, some of the hot or cold air produced by the system is lost. As air moves around the house, it's important to maintain a balance in air pressure. If not, the system is not working properly and problems may occur.
Negative air pressure is caused by household components that manipulate the airflow. Reasons for this can be anything from clothes dryers to leaky ducts and ventilation equipment. Negative air pressure is caused by the active pulling of air through the house.
Generally, air tightness tests are performed with the help of a fan. First, the air inside the equipment is pressurized, then the air inside the equipment is taken out of the environment by suction. The air inside the equipment and the air pressure passing through the pipe are measured using a manometer device. These values are evaluated.
Briefly, in the leak test, the air connection of an equipment part with the outside environment is cut, compressed air is supplied to the part at a certain rate and it is determined whether there is a leak or not. Leakage testing is also performed by immersion in water using pneumatic or hydraulic equipment.
Meanwhile, negative room pressure is an isolation technique used in hospitals and medical centers to prevent cross-contamination from room to room. Generally, air flows from high-pressure areas to lower-pressure areas. Therefore, a ventilation system that produces negative pressure, i.e., lower than the surrounding environment, is used to allow air to flow into the isolation room but not escape. This technique is commonly used to isolate patients with airborne infectious diseases. In this system, negative pressure is generated and maintained by a ventilation system that continuously attempts to expel air from the room.
Our organization also provides air tightness test services under negative pressure, with its trained and expert staff and advanced technological equipment, among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors.
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