What are the points to note when choosing an air purifier and air filter? How to maintain them for daily use?

Choosing an air purifier andAir FilterWhat are the points of attention? How to maintain it for daily use?

Air purifier has become a tool to fight against the haze in recent years, the core component of the air purifier is the filter, we are shopping for air purifiers, the most important thing is to look at its filter, with a good filter, the purification effect of the air purifier will be good. Many consumers know little about the filter, choose the right filter that is half the success, let's look at the small knowledge of the air purifier filter it.

Coarse filter layer: first step in air filtration

Most of the air purifiers on the market now have 3-8 layers of filters, half of which the front 1-2 layers is the coarse filter part, the coarse filter layer is mainly used to filter some of the larger substances in the air, such as hair, dust and so on, but also to effectively avoid them from entering the machine to affect the operation of the motor.

Cleaning 1-2 times per month

Pre-filter as a large particles in the air stay position, so after using a period of time it is easy to make the surface covered with dust, long time not cleaned up, but also let the air through the filter becomes troublesome. General pre-filter to clean up 1-2 times a month is appropriate, there is no surface coating such as photocatalysts a class of chemical substances in the filter, you can directly wash with water, and then blow dry with a hairdryer.

Choose a product with a small aperture

The pore size of the coarse filter layer is quite a bit larger than the fine filter layer, but we should also try to choose a product with a tighter texture to ensure that the purifier can filter out most of the dust in the coarse filter layer, and the mesh structure of the coarse filter surface should be intact to avoid the hair from penetrating into the back of the filter.

HEPA filter: the heart of the purifier

HEPA filter can also be said to be the heart of the air purifier, which is mainly used to filter fine particles above 0.3 nanometers, such as our most common PM2.5, PM10 and so on. The main role of the air purifier on the haze weather layer is focused on the HEPA filter, which also directly determines the purification effect of the purifier is good or bad.

HEPA filters are generally white fiber-like components of the laminated composition, its laminated part of about tight, the greater the filtration area of the product. Glass fiber HEPA filter filter effect is the best, it can let the air pass freely, but the fine particles are retained in it, so after a period of time, the HEPA filter surface will gradually turn yellow and black, then need to be replaced by the user on a regular basis.

Adsorbent layer: sweeps out residual airborne odors

At the back of the purifier filter layer is the adsorption part, common activated carbon, some will also have photocatalyst, ultraviolet light and other structural design, these parts are mainly in order to sweep away the residual odor in the air, and play a role in sterilization.

For the adsorption layer of activated carbon material, the main measure of the quality of the filter is to look at the activated carbon layer of the material and the amount of activated carbon adsorption there is a saturation, once it reaches its adsorption saturation, then more odor can not be effectively dealt with, and at the same time, the amount of activated carbon filter layer is also a limitation of the amount of the portion of the best, too much impact on the air circulation, the adsorption capacity of the big less and greatly reduced, the general single-grid screen Generally, the volume of activated carbon in a single grid filter reaches about 60% of the best.