1. Choose the appearance and form. The common air purifier for large spaces for house in the market has wall-mounted, suspended, ceiling, desktop, floor-standing and other forms. Users should choose the appropriate form according to their needs. On the basis of the main performance indicators of the devices, the noise, power, volume and other indicators should be as small as possible. Since different air inlet and outlet forms will also affect the effect of the purifier, the user should choose the air outlet form according to the specific room layout.

2. Choose the manufacturer of air purifier for large spaces, no matter what brand of air purifier, you must see three signs to identify its technical content.
(1) Behold the technical appraisal certificate issued by the first-level authority. For example, purifiers with sterilization and disinfection functions must have a "hygiene license."
(2) See if the product can meet the specific national air hygiene and air quality standards.
(3) See whether the processing air volume of the product can meet the size of the room you need to purify. In addition, pay attention to the quality of the manufacturer's after-sales service, because the filter element needs to be replaced by the manufacturer after it fails. Usually the electrostatic field must be cleaned after one month of use. When choosing an electrostatic purifier, the user should ask whether the manufacturer will regularly visit the house for cleaning.

3. Choose the air volume. The general family room can choose the air volume of 200ma/h to meet the purification requirements. If the air purifier for large spaces for house has a CADR index, the user can choose the appropriate CADR value according to it.

4. Choose functions. Consumers are dazzled by the various luxury and multifunctional air purifiers for large spaces for house on the market. From the basic function of purifying air, they are no more advanced than ordinary purifiers. Just choose the one that suits you.

5. Other issues that should be paid attention to. When the air purifier for large spaces for house is turned on, you should not smell the stench of ozone at the tuyere; because some purifiers contain high-voltage power supplies, the insulation performance of live parts is better.

Finally, consumers should read the instructions carefully, which can effectively and reasonably play the function of air purifier for large spaces for house.