How to purify indoor formaldehyde

Indoor air purification is extremely necessary, because many houses will have different degrees of pollution, which is caused by many factors, including unqualified building materials and furniture or untimely ventilation. These will interfere with our normal life and sometimes pose a health and safety threat to users or houses. So how can we remove excess formaldehyde gas as much as possible? I believe that through the following, you can have a deeper understanding.

How to purify formaldehyde in indoor air?

Fifth place: air purifier

The core technology of air purifier is physical filtration. The fan inside the purifier "sucks" indoor air into the machine and isolates pollutants through the filter screen. The filter screen has a certain pore size and different pore sizes, which can isolate particles with different diameters.

Decoration pollution belongs to gaseous pollutants, and its diameter is much smaller than particulate pollutants and PM2.5, so it cannot be isolated by filters. Therefore, most air purifiers can only remove particulate pollutants, and there is nothing they can do about gaseous pollutants such as formaldehyde and benzene series.

A few air purifier manufacturers have added activated carbon to the filter screen, but the amount of activated carbon here is very small. After all, the size of the filter screen is limited, and it will be saturated in a few days. It no longer has the function of in addition to formaldehyde and needs to be replaced frequently, so it can only rank fifth. At present, apart from the development of formaldehyde products, there is no particularly successful air purifier in the world, so be careful not to be confused by the excessive publicity of merchants.

Fourth place: activated carbon

Activated carbon is the most widely known material outside in addition to formaldehyde. Why is it only ranked fourth in this list?

Because most activated carbon has good adsorption capacity, but if pollution is treated by adsorption alone, it will not take long to reach saturation. At this time, activated carbon can not only play the role of in addition to formaldehyde, but also become the source of pollution to release and absorb formaldehyde. Therefore, when it is generally used for about 3 months, it is recommended to throw away the old activated carbon and replace it with a new one, or choose a new activated carbon with stronger performance, such as coconut charcoal, which will last a lot longer.

Activated carbon is cheap and suitable for daily deodorization or light pollution control. However, due to the shortcomings of easy saturation, short service life and secondary pollution, most of the activated carbon can only rank fourth in in addition to formaldehyde.

Third place: photocatalyst

Catalyst is the Japanese name for catalyst. Photocatalyst was first discovered by Japanese material scientists, so it is called photocatalyst. Traditional photocatalyst can decompose some tiny organic matter in the air in the sun, which is used to control decoration pollution.

In the later stage, the performance of photocatalyst is gradually improved, so that high-quality photocatalyst can decompose pollution under weak light.

Photocatalyst products can be divided into several types, and different furniture can choose products with different uses. For example, photocatalyst wood essential oil can be used for wood and panel furniture, in addition to formaldehyde can also care for wood surface, and leather in addition to formaldehyde care solution is suitable for leather products.

Pay attention to the price when choosing. The cost of improved photocatalyst is relatively high, and the products with an average price of 20% to 30% are basically traditional photocatalyst, which can only play a role under strong light.

Photocatalyst products on the market are mixed, ranking third overall.

Second place: nano-live ore

Nano-active ore is a kind of particle made from imported natural ore and nonmetallic rare earth ore such as active volcanic ore and sepiolite, which are refined by in-depth purification and scientific proportion and improvement of the original process. They are all international mainstream natural environmental protection raw materials, with extremely developed Amy-level and nano-level pores (1 Amy = 10 nm), and the pore size is concentrated at 0.23-0.9 1 nm, which is 5000 times that of similar activated carbon. They can actively absorb toxic and harmful gases such as formaldehyde, benzene, ammonia, hydrogen sulfide, sulfur dioxide and TVOC.

The advantages of decomposability, long service life and no secondary pollution make nano-active ore well-deserved to rank second.

First place: ventilation

Ventilation is the most traditional and economical method in in addition to formaldehyde, ranking 1. However, because ventilation needs a long vacant time, some owners simply give up ventilation and rely entirely on in addition to formaldehyde products to control pollution. This is absolutely impossible. No matter what in addition to formaldehyde products are used, we should insist on ventilation to play a better role.

The above example is mainly about the treatment method and specific operation steps of formaldehyde purification in indoor air. From this, we know that although many houses will be troubled by some pollution, we don't need to worry too much, because there are many ways to help us carry out purification operations later. If necessary, we can also use the knowledge mentioned above to buy green plants or activated carbon, air purifiers and other products to adsorb and remove formaldehyde according to the actual situation.