Is there an air filtration that could be used in vents for Covid-19 virus prevention?

[Stephanie1098]

My Air BNB is in the bottom level of my house, however, we share the same air filtration - are there any known ways to prevent the Covid-19 virus from entering into my part of the house if a guest happens to have become contaminated?

[Anonymous]

@Stephanie1098  Here's an FAQ put out by what remains of the EPA:  https://www.epa.gov/coronavirus/frequent-questions-about-indoor-air-and-coronavirus-covid-19

Much of the conjecture about the spread of Covid-19 through air circulation between floors or between one room and another is based on a study of an outbreak associated with air conditioning in a restaurant in Guangzhou. It's not a proven fact that a person has been infected with the virus by airflow as indirect as that passing between floors, as the viral load engaged in airbone droplet transmission is a far more acute exposure. However, we're still in the very early days of researching this novel virus, and we can't say with any certainty whether any specific home's airflow system can transmit an infectious amount of viral particles from one room to another. You might say it's a "non-zero" risk, but not as high as spending several hours of more in the same room as an infected person.

What you should bear in mind is that no household air filtration system is sophisticated enough to actually eliminate sub-microscopic viral particles, even though some might seem to be advertised this way. The link above might have some useful tips for managing the risk until we have more extensive research. If you don't feel confident that you can safely host in your shared-home environment - and especially if a member of your household is in a vulnerable group - it's probably best to pause your listing until we have more conclusive research and significantly lower infection rates.

[Pat271]

The airlines claim they have such a filtration system now in their airplanes.  Very interested in how effective it is, since I do plan do fly again in my lifetiime at some point.

@Anonymous  “...what’s left of the EPA” - haha, yes, amusing and sad at the same time.

[Robert7159]

We installed a greenfan bipolar ionizer at the fan inlet of our HVAC system to deactivate SARS-CoV-2 and other pathogens.  www.greenfan.co/bbi

[Bettye6]

Via the EPA here is no proven was to prevent SARS and all variances 100%. Though being in the realm of medical science for over 45 years there is no 100% of ANYTHING when it comes to medical treatment, prevention and mitigating measures. 

Even if you have been vaccinated, you will want to follow public health guidelines. That may mean temporarily wearing masks indoors or avoiding large gatherings if COVID-19 levels are high in your area. The good news is utilizing air-filtration systems will also reduce your risk of developing other respiratory viruses, like colds or flus, too. The data and research is constantly ongoing.

If I was so concerned I would just stop having guests until more data supporting air-filtration, etc. comes in. Just like vaccines, hand washing, disinfection when cleaning , usage of masks, air filtration/purifications systems etc. tremendously help, my advice if so concerned to not have guests.