1. Ventilation in addition to formaldehyde is a gift from nature. As long as the weather permits, we can open the in addition to formaldehyde unscrupulously, and control the formaldehyde in a safe range through dilution. However, the formaldehyde release cycle is long, so it needs long-term persistence to use ventilation in addition to formaldehyde, and other methods need to be taken to reduce the formaldehyde concentration when ventilation is poor.
2. Plants can remove formaldehyde. Although they can remove formaldehyde, the amount of formaldehyde they absorb is very limited, and when the indoor concentration is high, if only plants absorb formaldehyde, the amount is very large.
3. Using activated carbon is also a good choice. The surface of activated carbon is rich in pores, which can absorb indoor odor and play a certain role in pollution control. However, the treatment capacity of activated carbon is limited, and it will be saturated after about half a month of use, so it can't continue to work. In order to achieve the purpose of treatment, it is necessary to constantly replace new charcoal bags, which invisibly increases the treatment expenditure.
4. The blades of the fan can cut the air to push the airflow in the process of rotation, so as to realize the replacement of indoor and outdoor air, accelerate the discharge of formaldehyde-containing air, and effectively reduce the indoor pollutant concentration, but this method can only treat the symptoms rather than the root cause, and it may not be practical in warm seasons.
Photocatalyst, as its name implies, is a technology that decomposes free formaldehyde in the air into harmless substances with the participation of light. The reaction conditions are harsh, the contact area between the spraying surface and air is relatively limited, and formaldehyde is constantly released inside the material, so it is still difficult to remove formaldehyde simply by relying on photocatalyst.
Formaldehyde is released for a long time, so it will be difficult to treat formaldehyde by a single method. It is suggested to combine various methods to better stabilize formaldehyde in a safe range!