Opening window ventilation is recognized as the most effective and cost-effective method of removing formaldehyde, but to achieve the highest efficiency, not simply open a window, ventilation is also skilled.
The best season for window opening and ventilation is summer.
The higher the temperature, the faster the volatilization of formaldehyde. Close the window for two or three days, let formaldehyde fully volatilize in the high temperature environment, and then open the window half a day to let formaldehyde run out, repeat several times. (Time and rhythm can be mastered by oneself)
Instead of summer, create a high temperature environment with the help of heating equipment at home, such as air conditioning and floor heating.
Put industrial fans or blowers in the room to increase air convection and improve ventilation effect by shaking the head.