Will the virus come in through the window? Can I open the window for ventilation in in addition to formaldehyde?

Most diseases that can be transmitted by viruses are mainly transmitted by respiratory droplets and contact. Although it has been suggested that the virus can spread through aerosol, there is no evidence that the virus can spread through aerosol at present.

However, the propagation distance of water droplets is very short, generally within 1-2 meters, and they will not float in the air for a long time. Therefore, in the daily ventilated environment, there is generally no infectious virus in the air. It is recommended to open the window for ventilation at least twice a day, which is an effective measure to reduce the risk of infectious diseases.

Can in addition to formaldehyde be achieved by opening windows for ventilation? Window ventilation can really reduce the concentration of formaldehyde.

Because formaldehyde is a gas, it can flow with the air. When the window is opened for ventilation, the indoor and outdoor air will flow alternately, which will drive the formaldehyde generated by indoor furniture and decoration to flow outdoors and reduce the concentration of formaldehyde in indoor air.

In addition, it is best to reduce the concentration of formaldehyde by opening windows in high temperature weather, because high temperature will accelerate the release and volatilization of formaldehyde inside furniture, and it is also more conducive to the escape of formaldehyde gas.

Is it okay to open the window for ventilation in rainy days? It is not recommended to open the window for ventilation in rainy days. It is recommended to open the window for ventilation after rain, for the following reasons:

1. Open the window for ventilation in rainy days, and rainwater will easily fall into the house and wet the floor or furniture and articles.

2. It is often accompanied by strong wind before rain, which easily disturbs the dust accumulated on the windowsill and trees. At this time, it is best to close the window first to avoid introducing outdoor pollutants into the room.

3. At the beginning of the rain, even if it is not accompanied by lightning and strong wind, it is best not to open the window first, because there are many pollutants in the initial rain, and the washing of suspended particles and harmful gases in the air is not thorough enough.

4. When it rains or clears up for a while, the outdoor air gradually becomes fresh, and the negative oxygen ions in the air begin to increase. At this time, it is best to open the window for ventilation.

Can I open the window for ventilation 24 hours a day? It depends.

1. If it is winter in the north, 24-hour window ventilation will lead to a lot of cold air entering, which may cause people to catch a cold. It is recommended to open the window every 3-4 hours for about half an hour.

2. If it rains, it is not advisable to open the window for ventilation, but it will pollute the indoor air.

3. When the temperature is right and the weather is fine, you can open the window for ventilation 24 hours, which can keep the indoor air fresh and reduce the number of harmful bacteria in the room.