Air purifiers filter and block dust particles and harmful substances in the air by means of screens and static electricity, and more sophisticated instruments can even absorb smoke and bacteria in the air to achieve the purpose of purifying the air.
The advantage of fresh air system is that it can breathe fresh air outside without opening windows for ventilation, effectively remove dust and bacteria in the air, effectively reduce the concentration of indoor carbon dioxide, and dry and dehumidify the room. The important thing is that the fresh air system has little noise when it works, and it can be used even when it is asleep.
Of course, the fresh air system also has shortcomings. It needs to be customized before decoration, and the design is relatively complicated. It needs professional HVAC engineers to design and the decoration cost is high.
The air purifier is more suitable for the broad masses of people and for newly renovated or renovated families. Or a home for the aged, a Children's Home or a home for pregnant women. Its main function is to remove particulate matter in the air, including allergens and indoor PM2.5, and at the same time, it can also solve the air pollution problem of volatile organic compounds caused by decoration or other reasons in indoor, underground space and cars.
Similarly, air purifiers also have obvious disadvantages. After the air purifier is purchased, it needs to maintain or replace the filter regularly to ensure the efficient and lasting work of the air purifier and the service life of the air purifier. In order to achieve the best service experience for buyers.