What is the normal value for formaldehyde testing?

Jul 11, 2024 Source: Cainiu Health
Disease description:

After buying a new house, there is a lot of formaldehyde odor left from the renovation. I would like to ask, what is the normal formaldehyde detection level?

Doctor's answer (1)
Dr. Yang Ziqi
The normal range for formaldehyde detection values varies under different standards, but the generally accepted safe range is ≤0.08 mg/m³. This standard is mainly based on mandatory regulations issued by the Ministry of Construction, which specify that after home renovation, following forced ventilation and a one-hour closure, the formaldehyde emission level should not exceed 0.08 mg/m³. Additionally, there is a recommended standard suggesting that if the formaldehyde level is ≤0.1 mg/m³ after a 12-hour closure prior to moving in, it is also considered acceptable for occupancy. From a health perspective, it is advisable to follow the stricter standard, ensuring formaldehyde concentration remains below 0.08 mg/m³ to guarantee a safe living environment. Formaldehyde is a harmful gas with potential adverse effects on human health. Prolonged exposure to high concentrations of formaldehyde may lead to respiratory diseases, immune system dysfunction, and other health issues. During renovation or before moving into a new home, special attention should be given to formaldehyde testing and remediation to ensure a safe and healthy living environment.