How much do you know about the hazards of formaldehyde in the car interior? Air purifier manufacturers tell you the truth

　　Formaldehyde is also a volatile organic compound, but formaldehyde is easily soluble in water, and is different from other volatile organic compounds. It has a wide range of indoor sources and a high emission concentration. Therefore, formaldehyde is often described separately from other volatile organic compounds. Formaldehyde (chemical formula HCHO, molecular weight: 30.03, is a colorless gas with a strong pungent odor. It is easily soluble in water, alcohol and ether. It is gaseous at room temperature, usually in aqueous solution and gaseous form.

　　Acute formaldehyde poisoning is a systemic disease that mainly damages the eyes and respiratory system caused by exposure to high concentrations of formaldehyde vapor.

　　Formaldehyde is everywhere. It exists in many places. In addition to paint and glue, it is also inseparable from decorative materials and furniture. Especially wood-based panels, wood-based panels mainly use urea-formaldehyde resin as its adhesive, urea-formaldehyde resin is an amino resin adhesive formed by the condensation of urea and formaldehyde, it will slowly release formaldehyde, time can reach decades, Moreover, the urea-formaldehyde resin will accelerate the hydrolysis under the conditions of high temperature and high humidity, and the amount of formaldehyde released will increase, which will pollute the environment.

　　Relative concentration risk

　　When the formaldehyde concentration is 0.06-0.07mg/m³, children will have mild asthma;

　　When it reaches 0.1mg/m³, there will be peculiar smell and discomfort;

　　At 0.5mg/m³, it can irritate the eyes and cause tearing;

　　0.6mg/m³, which can cause throat discomfort or pain;

　　At higher concentrations, it can cause nausea and vomiting, coughing, chest tightness, wheezing and even pulmonary edema;

　　When the formaldehyde reaches 30mg/m³, it will cause death immediately.

　　Formaldehyde is a highly toxic substance, and formaldehyde ranks second on the priority list of toxic chemicals in my country. Formaldehyde has been identified as a carcinogen and teratogenic substance by the World Health Organization. It is a recognized source of allergies and one of the potential strong mutagens.

　　Long-term exposure to low-dose formaldehyde can cause chronic respiratory diseases, cause nasopharyngeal cancer, colon cancer, brain tumors, menstrual disorders, gene mutations in the nucleus, DNA single-stranded internal cross-linking and DNA-protein cross-linking, and inhibit the repair of DNA damage, pregnancy Syndrome, causes chromosomal abnormalities in newborns, leukemia, and causes adolescents' memory and intelligence to decline. Among all contacts, children and pregnant women are particularly sensitive to formaldehyde, and the harm is even greater. Higher concentrations can cause nausea and vomiting, coughing, chest tightness, wheezing, pulmonary edema, and even immediate death.

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