Can I move in if the formaldehyde is 04?

As we all know, there will be some gases harmful to the human body after the new house is renovated, among which formaldehyde is the most common one. Many new houses after decoration have to wait for a period of time before they can be moved in, but many people start to move in when the formaldehyde level is 0.4. Some people think that it is not suitable for human habitation when the formaldehyde level is 0.4. So, can formaldehyde 04 be accommodated?

First, is it okay to live in a house with formaldehyde 04? According to toxicological data: the main hazard of formaldehyde is irritation to the skin and mucous membranes. When formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. Formaldehyde concentration greater than 0.08m³ can cause red eyes, itchy eyes, throat discomfort or pain, hoarseness, sneezing, chest tightness, asthma, dermatitis, etc. Newly renovated rooms have high formaldehyde content, which is the main cause of many diseases. Formaldehyde has a pungent odor that can be smelled at low concentrations. The human olfactory threshold for formaldehyde is usually 0.06-0.07 mg/m³. However, there are large individual differences, and some people can reach 2.66 mg/m³. Long-term, low-concentration exposure to formaldehyde can cause headaches, dizziness, fatigue, sensory disorders, reduced immunity, drowsiness, memory loss, neurasthenia, and depression. Chronic poisoning is also extremely harmful to the respiratory system. Long-term exposure to formaldehyde can cause respiratory dysfunction and liver toxicity, manifested as liver cell damage, abnormal liver radiation energy, etc.

Second, when formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. When the concentration is greater than 0, they will experience chest tightness and shortness of breath. Formaldehyde is a colorless gas with a strong irritating odor. Easily soluble in water. A formaldehyde concentration of 0.08m3 can cause redness and itching of the eyes. Formaldehyde is a gas at room temperature, causing throat discomfort or pain, dermatitis, etc., alcohols and ethers, and usually appears in the form of an aqueous solution. A 35-40% formaldehyde aqueous solution is called formalin. The aldehyde group in the formaldehyde molecule undergoes condensation reaction to produce phenolic resin (Bakelite). The main hazards of formaldehyde are irritation to the skin and mucous membranes, hoarseness, and sneezing.

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