In addition, it can be ventilated frequently and decomposed by nanotechnology. This is a simple and effective method to remove formaldehyde, which is finally obtained by improving photocatalyst method. The most important thing is to detect formaldehyde and make it public, so as to eliminate customers' concerns from the source.

Formaldehyde is very harmful to health, including the following aspects:

1, irritation: generally manifested as irritation to skin and mucosa. Formaldehyde is a toxic substance in protoplasm, which can combine with protein. When inhaled in high concentration, symptoms such as severe respiratory irritation, edema, eye irritation and headache may occur.

2, sensitization: direct contact with formaldehyde may cause allergic dermatitis, pigmentation, necrosis, inhalation of high concentration of formaldehyde may induce bronchial asthma.

3. Mutagenesis: High concentration of formaldehyde is also a genotoxic substance, which may lead to gene mutation.