Formaldehyde 0.5 is very harmful to the body. Formaldehyde concentration is normally below 0.1, 0.5 is more than 5 times the normal, very harmful to human health. Mainly in the respiratory system, eye problems, immune system and other damage.
1. Respiratory system: inhalation of formaldehyde-containing air will feel breathless, coughing, chest tightness, long-term exposure can cause pneumonia.
2. Eye problems: the conjunctiva of the eye is more sensitive to formaldehyde, long-term exposure will appear dry eyes, tears and so on.
3. Immune system: long-term inhalation of formaldehyde can damage the immune system, prone to the possibility of colds and fever. There is also the risk of tumors.
Formaldehyde 0.5 is already a serious exceedance, which is very harmful to the human body. Usually pay attention to more ventilation, avoid inhaling too much formaldehyde.