This is how you have to ventilate to prevent coronavirus in the air in your home

You no longer have any doubts about how to clean your house against coronavirus, wash your masks or what to do with the Amazon packages when you get home. But every day new things are known about COVID-19 and the confirmation that it is able to remain suspended in the air have again expanded the panorama of the actions we can take to prevent infection. One of the last measures that specialists insist on now that September arrives, schools are opening and offices will be working at full throttle, is to ventilate often. But how can we do it the right way to make it work? Engineer Shelly Miller of the University of Colorado Boulder is specialized in how infections are transmitted in indoor air and has a few tips to offer you to do it correctly.

The importance of ventilating to prevent the spread of coronavirus

Once the coronavirus enters the air in a building, there is only one way to get rid of it: by renewing that air with air from outside. Therefore in rooms with windows the air must circulate often: the rooms in which the windows remain open will be the safest in your home. This air from outside will be in charge of “diluting” the virus load inside the home.

This is an easy tip to follow as long as the outside temperature stays nice, but what about in winter? According to engineers who are experts in the quality of the air we breathe, if we want to prevent a coronavirus infection, we will have to open the window much more than we usually do: for a room of about three square meters in which three people live, six air changes per hour are recommended, but in the situation we find ourselves in right now (and seeing what happened in previous epidemics with microorganisms similar to the coronavirus) the ideal would be to reach nine times an hour.


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Are air purifiers useful?

If the first measure is to open the window and create currents by also opening the doors, the second to complete it can be to invest in an air purifierEspecially when those nine air changes per hour cannot be guaranteed.

The Air purifiers are machines that filter the air in a room by retaining the particles in their filter that can contain bacteria and germs. Although there is no concrete evidence that shows that they can “catch” the coronavirus, there are studies with microorganisms similar to this coronavirus that support this system.

Of course, not all air purifiers have the same utility. In theory, only the most powerful and with the best filters could do something for the air in a room with suspended coronavirus. Purifiers that work with ions or ozone are of no use, look for models that use HEPA filters, which are the same as those used in hospitals and spaces such as, for example, airplanes.

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