HEPA filter air purifier,People often say that the HEPA filter is the heart of the air purifier. How much do you know about it?
People often say that the HEPA filter is the heart of the air purifier. How much do you know about it?
With the improvement of living standards, air purifiers have gradually entered our family. How to choose a good air purifier is very important. Filters are the key to the purification effect of air purifiers. We often hear the word "HEPA filter" mentioned by businesses when choosing air purifiers, but many people still don't understand HEPA filter.
Many friends know that the HEPA filter can be called the heart of an air purifier, and its material directly affects the performance and service life of the air purifier. As the heart of an air purifier, what is the HEPA filter made of? What is its purification principle? How should we distinguish the quality of HEPA?
The full name of HEPA filter is High-efficiency particulate arrestance.
HEPA filter are generally made of polypropylene or other composite materials, and most of them are not washable.
A small number of HEPA filters made of PET material can be washed, but this type of filter has a lower filtering effect.
How does the HEPA filter work?
The HEPA filter through 4 forms: interception, gravity, airflow and van der Waals force. Generally, large particles of 5μm and 10μm are intercepted. Under the influence of gravity, dust particles with a small volume and high density will slow down when passing through HEPA, and will naturally settle on the HEPA filter like sediment on the bottom of a river. The HEPA filter mesh is not evenly woven to form a large number of air vortices, and small particles are adsorbed on the HEPA filter under the action of the airflow cyclone. The ultrafine particles hit the HEPA fiber layer in Brownian motion, and are purified by the influence of Van der Waals force.
The most common in air purifier is the H grade. HEPA of this specification are all high-efficiency or sub-high-efficiency filters. The H-level is recognized as the best is H13-14 filter. Among them, H13 grade HEPA filter can achieve a total efficiency of 99.95%. As we all know, an important indicator that tests the performance of an air purifier is CADR. The greater the clean air output ratio, the higher the purification efficiency of the air purifier. Factors affecting CADR include the efficiency of the HEPA filter and the air volume of the air purifier.
Here recommend three types of kinscoter air purifiers with H13 grade HEPA filter, AC01/AP01/AP03 air purifier.
