Air purifier, also known as ‘air cleaner’, air freshener, or purifier, refers to the ability to adsorb, decompose, or transform a variety of air pollutants (generally including PM2.5, dust, pollen, odors, formaldehyde, and other decorative pollution, bacteria, allergens, etc.), to effectively improve the cleanliness of the air products, mainly divided into domestic, commercial, Industrial, building. So the air freshener good to use? Air freshener purchase and what are the precautions?
A good air purifier, to a certain extent, can purify most of the harmful particles in the air and really can achieve the effect of clean air.
Measurement standard of air purifier
To ensure that the indoor air achieves a certain number of air changes, the current international common standard is not less than 5 times.
Air purifiers once the purification efficiency is high, if there is a continuous source of indoor pollution, these two indicators can make indoor pollutants remain at a relatively low level.
It is recommended to choose an air purifier with a larger fan capacity. Especially in filtered air purifiers, there is a fan as a source of energy air circulation system, because the air volume is large, the filtering effect and purification capacity are correspondingly large.
Air purifier purchase attention to what issues?
1. Purification technology
Consumers should choose the application of physical filtration, chemical decomposition filtration, or ionic technology of the three major types of technology of air purifiers, physical filtration technology is preferred to ensure that the purification effect, try to choose the use of multiple purification technologies of air purifiers; to avoid the use of electrostatic dust collection technology of air purifiers.
2. Filter material
In different filter materials, the purification effect is different, the higher the HEPA net level, the smaller the diameter of the particles that can be filtered, and the better the filtration effect. At present, the HEPA filter is made of antimicrobial peptide material, and its purification efficiency is very high.
3. Clean air volume
The larger the clean air volume (CADR), the larger the purification area of the air purifier, and the greater the number of cycles of purification. The international standard is 5 cycles per hour. When choosing, consider whether the clean area of the air purifier and the room area match, try to buy the air purifier with a large amount of clean air.
4. Purification efficiency
One-time product purification efficiency = (number of particles in the air inlet - number of particles out of the air outlet) / number of particles in the air inlet, one-time purification effect can be seen intuitively the quality of the product and purification effect. Consumers in the purchase in addition to considering the one-time purification efficiency, should also consider the whole machine purification efficiency, that is, the amount of clean air.
5. PM2.5 Real-time display of values
Some air purifiers on the market can not show the content of PM2.5 in the air, some can be rough with ‘good, good, medium, poor’ to show that there are very few high-end air purifiers that can be real-time displays of PM2.5 in the air in the precise value of the user can be very intuitive to see the changes in indoor air quality.
6. Body Structure
At present, the air purifier air in and out of the way is mainly divided into.
Back into the air in front of the wind: this way is easy to blow up the dust on the floor to aggravate the dust in the indoor air.
Below or behind the wind above the wind: this way you can suck the dust on the floor into the air purifier after purification from the top blowing fresh air, play a ‘clean floor’ role, especially at home with babies, babies like to crawl on the ground, the need to pay attention to the floor hygiene.
7. Safety, to eliminate secondary pollution
The use of electrostatic dust removal and pure negative ion technology air purifiers will produce ozone, which is often referred to as the air purifier secondary pollution. A certain amount of ozone can kill bacteria, viruses, and decomposition of gaseous pollutants, but excessive ozone is harmful to the body, affecting the lungs, and leading to asthma, and serious cancer.
At present, the safest and most efficient technology is the HEPA network technology, and activated carbon technology, electrostatic dust removal, and pure ionization technology will produce ozone, in the purchase should choose to use the HEPA network filtration and activated carbon technology air purifier.
8. Noise
Noise is often encountered in the use of air purifiers in the process of purchasing, should mainly from the following three aspects consider the noise problem: sleep mode can achieve ultra-quiet; maximum air volume generated by the noise can be tolerated; automatic mode of the noise is acceptable. Some purifiers use DC brushless ultra-quiet motors, and additional quiet cotton technology, which can reduce the noise effectively.
Comentários