1. Filter material. Good filtration materials (such as HEPA high-density filter) adsorption capacity of more than 0.3 micron pollutants up to 99.9%%.
2. Purification efficiency. The room is larger, should choose the unit purifying Air volume big the atmosphere purifier, for example 15 square meters room should choose unit purifying air volume for each hour 120 cubic meters of the airborne purifier.
3. Service life. With purifying filter bile tending to saturate, the adsorption capacity of purifier will decrease, so consumers should choose the purifying filter with regenerative function to prolong their life.
4. Room pattern. Air purifier in the outlet of the 360-degree annular design, also has one-way exit wind, to the product in the placement of the room is not restricted by the pattern, you can choose the ring out of the wind design products.
5. Demand. According to the types of pollutants to purify the air purifier, HEPA has a strong purification function for soot, suspended particles, bacteria and viruses, and catalytic activated carbon is better for odor and harmful gas purification.
6. After-sales service. Purification filter bile after failure to the manufacturers to replace, so should choose after-sales service perfect enterprise products.