Formaldehyde content is 1.6 after 8 hours of sealing. Does it need to be treated if the windows are open for ventilation 24 hours a day?

The national standard for indoor formaldehyde content is to close doors and windows for 12 hours. If the formaldehyde content is less than 0.1, it is considered as meeting the standard.

The 1.6 you tested has exceeded the national standard by more than ten times, which is a very serious pollution. At this time, it is difficult to use traditional ventilation to reduce the value to the safety range stipulated by the national standard. It is recommended that you find a regular formaldehyde treatment company to remove formaldehyde from your home. Formaldehyde treatment companies remove formaldehyde from the source of pollution. This is currently the fastest and most effective way to remove formaldehyde.