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Can air purifiers really remove formaldehyde? These points are very important!

Can air purifiers really remove formaldehyde? These points are very important!

Due to the continuous increase of smog weather in recent years, the PM2.5 value of many cities has frequently exploded. In addition, the smell of formaldehyde such as new house decoration and furniture has brought a great impact on people’s health. In order to breathe clean air, air Purifiers have become the new “darling”, so can air purifiers really absorb haze and remove formaldehyde? What should I pay attention to when purchasing?


Air purifier principle

The air purifier is mainly composed of a motor, a fan, an air filter and other systems. Its working principle is: the motor and fan in the machine circulate the indoor air, and the polluted air passes through the air filter in the machine and removes various pollutants. removal or adsorption.

Whether the air purifier can remove formaldehyde depends on the filter element, because at present, gaseous pollutants such as formaldehyde are mainly reduced by the filtration of activated carbon filter element, and the requirements for structural design, activated carbon technology and dosage are high.

If the formaldehyde content is high, relying on air purifiers alone will not work at all. Therefore, the best way to remove formaldehyde is to open windows for ventilation. It is best to choose an air purifier with strong formaldehyde removal ability + whole-house fresh air system.


Six buying points

How to choose a suitable air purifier? It is necessary to consider which pollution source the purification target is, as well as the area of ​​the room, etc. The following parameters are mainly considered:



The filter screen is mainly divided into HEPA, activated carbon, light-touch coal cold catalyst technology, and negative ion anion technology. The HEPA filter mainly filters large particles of solid pollutants; formaldehyde and other gaseous pollutants adsorbed by activated carbon; photo-contact coal cold catalyst technology decomposes harmful gas formaldehyde, toluene, etc.; negative ion anion technology sterilizes and purifies the air.

Purified air volume (CADR)

The unit m3/h can purify x cubic meters of air pollutants in one hour. Generally, the area of ​​the house is ✖10=CADR value, which represents the efficiency of air purification. For example, a room of 15 square meters should choose an air purifier with a unit purification air volume of 150 cubic meters per hour.


Cumulative Purification Volume (CCM)

The unit is mg, which represents the tolerance of the filter. The higher the value, the longer the life of the filter. This is mainly determined by the filter used, which determines how often the filter needs to be replaced. Divided into solid CCM and gaseous CCM: except for solid pollutants, represented by P, a total of 4 grades, except for gaseous pollutants, represented by F, a total of 4 grades. P, F to 4th gear is the best.


room layout

The air inlet and outlet of the air purifier have a 360-degree annular design, and there are also one-way air inlet and outlet. If you want to place it without the restriction of the room pattern, you can choose a product with a ring inlet and outlet design.



The noise is related to the design of the fan, the air outlet, and the selection of the filter screen. The less noise the better.


After-sales service

After the purification filter fails, it needs to be replaced, so after-sales service is very important.

A good air purifier focuses on fast filtration (high CADR value), good filtration effect, and low noise. However, aspects such as ease of use, safety and after-sales service also need to be considered.


Daily maintenance method

Like water purifiers, air purifiers need to be cleaned regularly, and some may need to replace filters, filters, etc. to maintain their purification effect. Daily maintenance and maintenance of air purifiers:

Daily Care and Maintenance

Check the filter regularly

The internal filter is easy to accumulate dust and produce bacteria. If it is not cleaned and replaced in time, it will reduce the operating efficiency of air purification and will have adverse effects. It can be cleaned according to the instructions, and it is recommended to check it once every 1-2 months.

Fan blade dust removal

When there is a lot of dust on the fan blades, you can use a long brush to remove the dust. It is recommended to perform maintenance every 6 months.

External maintenance of the chassis

The shell is easy to accumulate dust, so wipe it with a damp cloth regularly, and it is recommended to clean it every 2 months. Remember not to scrub with organic solvents such as gasoline and banana water to avoid damaging the purifier shell made of plastic.

Do not turn on the air purifier for a long time

Turning on the air purifier 24 hours a day will not only not increase the cleanliness of the indoor air, but will lead to excessive consumables of the air purifier and reduce the life and effect of the filter. Under normal circumstances, it can be opened for 3-4 hours a day, and there is no need to open it for a long time.

Filter cleaning

Replace the filter element of the air purifier regularly. Clean the filter element once a week when the air pollution is serious. The filter element needs to be replaced every 3 months to half a year, and it can be replaced once a year when the air quality is good.

Post time: Jun-08-2022