Some knowledge about air purifiers

Some knowledge about air purifiers

It’s the heavy fog season again! The gray sky is like the end of the world in a disaster movie. Usually 2.5 is in the thirties, but now there are hundreds of different words. With such a broad mind on air quality, are you also saying “it’s time to buy an air purifier”? Before you buy, you’d better listen to some professional suggestion. Olansi healcare, professional air purifier manufacturer will share the knowledge of air purifier with you!

Lesson-1 To Know PM2.5

PM2.5 refers to the particles with diameter less than or equal to 2.5 microns in the atmosphere. It is the main component of haze. The World Health Organization defines the health limit of PM2.5 annual concentration as 10 μ g, while China’s standard is 35 μ G. There is a big gap with the health limit of who.
The excessive concentration of PM2.5 not only causes great pollution to the environment, but also has a great impact on the human respiratory system, cardiovascular system, reproductive system and blood system.

Lesson-2 Air Purifier Standard(China)

The new national standard of air purifier, namely GB / t18801-2015 “air purifier” national standard, was officially implemented on March 1, 2016.
In the new national standard, four core indexes affecting the purification effect of air purifier are clearly specified: Cadr value (clean air volume), CCM (cumulative purification volume), energy efficiency level and noise standard.
The formal implementation of the new national standard will help the product return to the essence of performance. Consumers only need to pay attention to the four new indicators when they buy, and make the market publicity more transparent, rather than blind price war and pseudo intelligence.

Lesson-3What is CADR?

CADR, the output ratio of clean air volume, refers to the total amount of clean air output per unit time after filtering through the purifier. The unit is m3/h, including particulate matter CADR and formaldehyde CADR. The larger the CADR value, the faster the purification speed of the air purifier.
The meaning of CADR value to an air purifier is like the horsepower of an air conditioner. The greater the space, the greater the number of horses required for air conditioning, and the same is true for the CADR value of the air purifier.
The most relevant to CARD is the applicable area of air purifiers. The calculation formula for the applicable area is: CADR* (0.07~0.12) = applicable area.

Lesson-4 What is CCM
CCM refers to the total weight of accumulated purification pollutants (particulate matter or formaldehyde) when the CADR value decays to 50%, and the unit is mg. CCM represents the continuous purification capacity of the air purifier, which can measure the service life of the air purifier.
According to the new national standard, CCM is divided into four levels according to the different types of pollutants:
From low to high, they are P1, P2, P3, P4, and the highest level is P4.
Aldehyde CCM is denoted by F, and is also divided into four levels, from low to high respectively F1, F2, F3, F4, and the highest level is F4.

Lesson-5 What is energy efficiency rating and noise

Purification energy efficiency is defined as the ratio of CADR clean air volume to rated power, which is divided into particulate matter purification energy efficiency and formaldehyde purification energy efficiency.
Purification energy efficiency = CADR clean air volume / rated power
Noise refers to the amount of sound produced when the air purifier reaches the maximum CADR value.
The regulation of noise standards is to restrain the blind increase of CADR value. The CADR value is getting higher and higher, the internal fan of the machine must increase the speed, so that the noise will increase accordingly. A truly effective air purifier must not only have a strong purification efficiency and ability, but also have an excellent air duct design and Noise control.

Lesson-6 How to buy suitable air purifiers

First of all, look at the purification needs: if you are newly renovating a house and the focus is on removing formaldehyde, you should give priority to the CARD value of formaldehyde; but if you are in the north and are troubled by smog, your purification needs should be haze removal. , Then first look at the CADR value of particulate matter.
Secondly, look at the size of the room: According to the size of the space, select the corresponding CADR value, the calculation formula is: CADR* (0.07~0.12) = applicable area
Furthermore, look at the later use cost: the cost of the filter and the cost of electricity.
Finally, consider the issue of brand after-sales.

Lesson-7 How to use and maintain correctly

When using an air purifier, it is recommended to close the doors and windows to prevent large amounts of indoor and outdoor air from causing a decrease in the purification effect;

After long-term use, periodic ventilation and ventilation can be carried out to prevent carbon dioxide from exceeding the standard;

The second category is polished tiles, which are the vitrified tiles we often hear;

It is necessary to replace the filter or clean the Kongqing purifier regularly. The CARD value of the air purifier will decrease after a certain period of time. If it is not replaced for a long time, it may cause secondary pollution in the room.


For more information on air purifiers, please check out olansi healthcare for more official news or contact Patricia [email protected].


Share this post