2. It contains a catalytic activated carbon adsorption layer, which has a strong adsorption capacity for harmful gases and odors in the air. The catalytic activated carbon used in Du Ya can be adsorbed and decomposed at the same time, and there is no secondary pollution, which greatly prolongs the service life.

3, -990 finishing technology can effectively kill most bacteria in the air.

4. Pollutant detection technology, which uses optical principle to scan microorganisms by laser to effectively detect the concentration of pollutants.

5, intelligent display, real-time detection and analysis, always display the concentration of smoke, bacteria, odor, relative humidity and filter life in the environment.

6. The market started early, with a certain popularity and fashionable appearance.

7. In addition, the greatest advantage of Du Ya is that it will not produce ozone like the purification opportunity of electrostatic dust collection technology, which will cause cancer.