Can air purifiers really remove formaldehyde?

Before we move into a new house, we will do one thing, that is, to deal with the formaldehyde problem. Formaldehyde release takes a long time and is slow, so we need to ensure that the formaldehyde concentration is within an acceptable range before we can move in. There are many ways to remove formaldehyde in life, and air purifiers are the choice of many people! Do you know about air purifiers? Can it really remove formaldehyde? Let's take a look at this question with Susan today~

What is an air purifier?
The operating principle of an air purifier is mainly a mechanism to realize the circulation of indoor air through the operation of an internal fan. After the dirty air passes through the internal filter filter device, various bacteria or large particles of impurities are removed or adsorbed, thereby providing people with a "microclimate environment" of fresh air (the air purifier does not have the function of fresh air replacement). In addition, the air purifier can also be placed at home for a long time for long-term formaldehyde removal.
Can an air purifier remove formaldehyde?
An air purifier can remove formaldehyde, but it can only remove free formaldehyde in the indoor air, and cannot solve the problem of indoor formaldehyde release sources. Therefore, it is necessary to use it for a long time with the release cycle of formaldehyde to achieve good results. This cycle generally takes more than 3 years to reduce the natural volatilization of formaldehyde to below the standard value!

Air purifiers are divided into active and passive types. Active purifiers refer to various products that continuously release decomposition of formaldehyde into the air to achieve the effect of removing formaldehyde. When using this type of purifier, you should pay attention to the quality and decomposition efficiency of the product itself, whether it will cause secondary pollution of indoor air, etc.
Passive air purifiers, most of which are filtering purifiers, inhale indoor air, and then pass through the activated carbon filter to adsorb formaldehyde molecules and PM2.5 and other particles, so as to achieve the purpose of purifying indoor air quality. When using this type of purifier, it should be noted that the activated carbon filter will be saturated with adsorption and needs to be replaced regularly, generally in a cycle of about 3 months. Once the adsorption is saturated, it will lose the function of purifying the air!

How to choose a formaldehyde removal air purifier?
1. CADR value: CADR indicates the purification speed of the air purifier. The higher the value, the faster the purification efficiency. For newly renovated indoor environments, it is recommended to choose an air purifier with a formaldehyde CADR value of more than 300m³/h.
2. CCM value: Considering the continuous release of indoor formaldehyde, in addition to paying attention to the purification speed, you also need to pay attention to the continuous purification capacity. The higher the CCM value, the longer the service life of the filter element. Therefore, when choosing an air purifier, in addition to CADR, you should also pay attention to the CCM parameter to ensure that the purifier has good continuous purification capabilities.
3. Activated carbon content: The mainstream air purifier formaldehyde removal method is to adsorb activated carbon in the filter element. Therefore, the content of activated carbon can reflect the formaldehyde removal performance of an air purifier.

In general, air purifiers can remove some formaldehyde, but they have no way to solve the problem of continuous release of formaldehyde release sources. Everyone should choose it reasonably according to their actual situation.