Tag - air purifier for anti virus

How to calculate the purification area of air purifier

If you want to know the purification area of an air purifier, you need to know the CADR value of the purifier first. Then what is the CADR value?
CADR is the acronym of clean air delivery rate. It can be simply understood as the total amount of clean air output by air purifier after removing solid particles per unit time. It is an important index to evaluate the purification performance of an air purifier.
The internationally recognized “CADR value” is the result of testing the air purifier under certain testing conditions by AHAM. Generally speaking, the larger the power of the detected air purifier is, the higher the output value of clean air is, and the larger the applicable area is.

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According to international practice, a qualified air purifier can purify indoor air five times per hour. So, how can we judge the room area that can be purified by the CADR  value of an air purifier?
In fact, we can easily get the result through a formula【 Applicable area s (M2) = 12F / 60H] in the formula, s on the left represents the area to be calculated, f on the right is the maximum air output of the air purifier, i.e. CADR value, and H is the floor height of the room, generally calculated as 2.8m. According to the international standard, the indoor air should be purified five times in an hour, that is, every 12 minutes, so the numerator and denominator are multiplied by 12 and 60.

be careful:
However, the applicable area of the air purifier is only a reference data. Due to the influence of the air exchange volume in the room, the floor height of the house and the number of furniture placed in the room, the specific value of the applicable area of the house is not the same, and the so-called applicable area is only a reference value.
In addition, many air purifiers also have the function of removing formaldehyde, and the CADR value of purifying formaldehyde is generally weaker than that of purifying particulate matter. So in the purchase of air purifier must be consistent with their actual needs.

In summer, formaldehyde air purifier is more needed

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In general, users are used to decorating rooms in spring, and “let the wind” exhaust poison for newly decorated rooms in summer. After the new house is decorated, it can be moved in 3-6 months, but this does not mean that the pollutants are completely dispersed.
Some experiments show that the formaldehyde emitted from wooden furniture and floor will increase the concentration of formaldehyde in the air by 0.15 to 0.37 times when the indoor temperature rises by 1 ℃. In summer, indoor and outdoor are in a high temperature and humid environment, which will accelerate the release of formaldehyde in furniture and other decoration materials. Especially in summer, indoor and outdoor are in a relatively high temperature and humid environment, which will accelerate the release of formaldehyde. Most users will smell pungent smell in the newly decorated rooms. Therefore, for the new house decoration time is short, the new home bought a few pieces of furniture, the old house for local decoration, especially in summer should pay attention to formaldehyde.
In response, Olansi alls for the reasonable use of air purifiers with formaldehyde removal function in summer, which can improve and improve air quality and reduce indoor air pollution. Olansi is a professional air purifier manufacturer, with more than ten years of production experience, the introduction of various air purifiers, to the best price for users, the best quality.

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