How should laboratories purify the air and remove chemical odors?
As an efficient laboratory equipment, chemical and hazardous substance purifiers play an important role in ensuring the safety of experimental personnel and the surrounding environment. Its features such as high-efficiency filtration, intelligent control, energy saving and environmental protection, and integrated design make it have broad application prospects in laboratories.
With the continuous development of technology, I believe it will be applied in more fields in the future and create a safer, healthier and more comfortable environment for us.
Purification device principle
According to the different chemical substances stored by users, the system is configured with chemical hazardous substance molecular filters, which can purify and process harmful substances such as organic volatiles, acidic gases, and alkaline gases, purify the air inside and around the cabinet, and ensure the safety of laboratory personnel. . The standard H14 grade high-efficiency filter has a filtration effect of 99.997% of 0.3 micron (1/200 of the diameter of a hair) particles.
Clean gas path
Air inlet → HEPA filter → Carbon filter → Air outlet
HEPA (High efficiency particulate air Filter), which means high-efficiency air filter in Chinese, is a filter that meets the HEPA standard. The HEPA standard is set by the U.S. Department of Energy (DOE) and requires the filtration of particles in the air with a diameter of more than 0.3um. At least 99.97%, and at the same time, under rated flow conditions, the pressure drop is about 300Pa.
It can remove more than 99.7% of particles with a diameter of less than 0.3 microns (1/200 of the diameter of a hair) and is the most effective filtering medium for pollutants such as smoke, dust, and bacteria. (Smoke particles produced by smoking are 0.5 microns in diameter). It is internationally recognized as the most efficient filter material. It has been widely used in high clean places such as operating rooms, animal laboratories, crystal experiments and aviation.
HEPA high-efficiency filters can be widely used in the air supply terminals of air conditioning in dust-free purification workshops in industries such as optical electronics, LCD liquid crystal manufacturing, biomedicine, precision instruments, beverages and food, PCB printing and other industries. High-efficiency and ultra-HEPA high-efficiency filters are used at the end of the clean room. Their structural forms can be divided into: high-efficiency with partitions, high-efficiency without partitions, high-efficiency high-air volume, ultra-HEPA high-efficiency filters, etc.
There are also three types of HEPA high-efficiency filters, one is a super HEPA high-efficiency filter, which can purify 99.9995%. One is an antibacterial high-efficiency air filter without partitions, which has an antibacterial effect and prevents bacteria from entering the clean workshop. The other is a sub-HEPA high-efficiency filter. It is cheap and used to be used in purified spaces with low requirements.