No discomfort does not necessarily mean that it does not exceed the standard, but it may also be caused by people's insensitivity. It is recommended to have natural ventilation for one or two months before check-in. If it's cold today, you don't need 24-hour natural ventilation. You can close the window for one day and open it for two hours. Because the temperature is too low, it is not conducive to formaldehyde release.
At ordinary times, the doors of furniture boxes and drawers at home are all open, and the mattress is torn off and erected, so that both sides can feel the air. If it is a mattress with zipper, you can unzip it to reveal the brown mattress inside. The curtain cloth curtain is soft-mounted, so don't worry about hanging it. Wash it with boiling water first, and then hang it in the sun. Second-hand housing depends on the length of time. First, it is related to the time period; Second, it is related to the original home improvement materials! Everyone's inspection experience shows that the interior decoration of houses can be found everywhere in 3-5 years, not to mention the evaporation mentioned in the materials has reached 3- 15 years!
If wooden floors and wallpaper were used in the initial interior decoration, and there was a lack of understanding of the harm of formaldehyde in the early decoration, raw materials with strong formaldehyde content were used. Then you must not only consider the furniture you bought later! It depends on what kind of furniture you choose. If it's solid wood, you can move in within a month. If it is high-density board furniture, it should be ventilated for at least 2-3 months before moving in. More activated carbon or fume purifier should be put in the furniture to remove formaldehyde.