Harm of formaldehyde: Long-term exposure to low-dose formaldehyde can cause chronic respiratory diseases, menstrual disorders in women, pregnancy syndrome, physical deterioration of newborns, chromosomal abnormalities, and even nasopharyngeal carcinoma; High concentration of formaldehyde is toxic to nervous system, immune system and liver.
The method for removing formaldehyde is as follows:
(1) Ventilation in addition to formaldehyde: Through the circulation of indoor air, the content of harmful substances in indoor air can be reduced, thus reducing the harm of such substances to human body. In winter, people often close doors and windows, and indoor and outdoor air cannot circulate. Not only will the content of formaldehyde in indoor air increase, but radon will also accumulate continuously, even reaching a very high concentration;
(2) Activated carbon adsorption method: Activated carbon is an internationally recognized expert in drug rehabilitation. Activated carbon masks and gas masks are made of activated carbon. Activated carbon technology is relatively mature, does not contain any chemical additives, and has no effect on human body. No secondary pollution will be caused by physical adsorption. Putting tens of grams per square meter can basically remove indoor odor for 72 hours.
(3) Plant deodorization method: For medium and low pollution, plants can be used for decontamination. Generally, indoor environmental pollution is mild and moderate, and the pollution value is less than 3 times of the national standard. Using plants to purify can achieve better results.