Can people still live when formaldehyde is slightly ventilated beyond the standard?

You can't. The formaldehyde in the new house exceeds the standard, so you can't move in immediately after ventilation. In addition to the limited ventilation capacity of formaldehyde, the speed is slow and the formaldehyde release cycle is long, which is 1-3 years. Therefore, the ventilation work needs to be continuous, and it can never be solved by ventilation for several months.

After the renovation of the new house was put on hold for a period of time, the toxic substances in the house were blown outside by the wind. Although the owner can't smell the smell, the smell has not disappeared, and there are still toxic substances in the renovated objects. Generally, family windows are designed to be more than one meter above the ground. The density of formaldehyde is higher than that of air, and it is easy to precipitate. Even if the window is ventilated, it is still difficult to completely remove formaldehyde. Furthermore, most harmful substances are released slowly, as long as 3~ 15 years. High temperature weather in summer and heating period in winter are usually the peak of formaldehyde emission, which is 20% to 30% higher than usual.

Therefore, if the formaldehyde in the home exceeds the standard seriously, it is useless to rely on ventilation for several months. The key is to ensure that pollutants do not exceed the standard and indoor air quality is qualified. Formaldehyde is the main pollutant of newly-installed families, and these pollutants come from home decoration materials. The formaldehyde content in the air at home mainly depends on whether the decoration materials are environmentally friendly and has no direct relationship with the ventilation time.

Under the condition of good ventilation, 5-6 months is the best stay time. During this period, the house has experienced at least two seasons, and the temperature is relatively high in summer, which can accelerate the volatilization of harmful substances such as formaldehyde.

The harm of formaldehyde to human body is 1, and the stimulating effect is 1. Short-term exposure to high concentrations of formaldehyde is mainly manifested as irritation to skin mucosa and respiratory tract. According to the severity of the illness, the patient has symptoms such as tears, sore throat, cough, shortness of breath and difficulty breathing.

2. Sensitization. Skin contact with a certain dose of formaldehyde can cause allergic dermatitis; Inhalation of formaldehyde into respiratory tract may induce bronchial asthma.

3. Mutation. High-concentration formaldehyde is a genotoxic substance, and the continuous exposure of experimental animals to high-concentration formaldehyde leads to an increase in the incidence of various tumors. Use good materials, light green, and spray where there is formaldehyde. This material helps to reduce the effects of formaldehyde on the body.