The weather in the global village

At present, it seems that there is no air purifier that can really be used in in addition to formaldehyde, but it has a good effect on removing indoor PM2.5, and the air purifier does have a certain effect on in addition to formaldehyde.

Compared with mechanical filtration, it can only effectively remove particles above 10 micron, but when the particle size is reduced to 5 micron, 2 micron or even sub-micron, the efficient mechanical filtration system will become more expensive and the wind resistance will increase significantly.

By filtering with electrostatic electret air filter material, high collection efficiency can be achieved under the condition of low energy consumption, and at the same time, it has the advantages of electrostatic dust removal and small wind resistance, but there is no need to externally connect tens of thousands of volts, so ozone will not be generated, and it is convenient to discard because it is made of polypropylene.

The national standard requires that the formaldehyde emission value is less than 0.08 mg/m3, and the formaldehyde in most newly decorated houses is not less than 0.2 mg/m3, while the formaldehyde absorbed by the high formaldehyde absorption efficiency is only 20 micrograms per hour. Take a room of 100 square meter with a height of 3 meters.

For a room with a formaldehyde value of 0.2 mg/m3, it takes 1.800 pots of radish to reduce the formaldehyde to 0.08 mg, which is still carried out under the condition of sufficient sunlight during the day, and it is necessary to ensure that no formaldehyde is released during the absorption process. In fact, formaldehyde has been continuously released from the renovated furniture. Therefore, plants can only play an auxiliary role in controlling harmful substances such as formaldehyde and benzene.