9 votes
Accepted

Does a KN95 that says 'non medical' helps to protect against COVID-19?

In the US, in order for a mask to be labeled "medical", that mask must be approved by the FDA as a medical device. With so many new people manufacturing masks coupled with the public demand ...
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  • 680
4 votes
Accepted

Is repirator easier to breathe through than conventional medical mask?

Masks with exhalation valves are meant to be used to protect against particulates like sawdust or smoke. They must not be used in a pandemic because a large part of the usefulness of masks is ...
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  • 11.7k
3 votes
Accepted

Why do some vaccines have only a short protection span?

The most obvious reason why a vaccine may have limited use is mutation. Flu vaccinations are only useful for a season since the dominance of the many Influenza serotypes changes pretty quickly over ...
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3 votes

Does a KN95 that says 'non medical' helps to protect against COVID-19?

Typically for an N95 mask to be considered "medical grade" it must be compatible with a sterile environment, such as by filtering both inhaled and exhaled air. Surgical masks provide some ...
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  • 131
3 votes

Alternatives other than face-mask-respirators for protection against COVID-19

Those are face shields to prevent primarily droplets reaching the eyes, and are worn as being more comfortable than goggles to protect the mucous membranes of the eyes, and they don't fog up like ...
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  • 13.2k
2 votes
Accepted

Is it helpful for the average citizen (non medical professionals) to wear gloves and disinfect them instead of disinfecting the bare hands?

This answer is based on experience and common sense, as there are no studies giving a definitive answer. There are plenty of studies about decontamination of surfaces, but none that I know of ...
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2 votes

Why don't we use complete white medical suits to have full protection instead of only masks?

In an ideal world everyone would have full body Ebola type protection. In the world of practicality, the WHO has advised that this is a droplet, and surface spread infection. However, it is not ...
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  • 13.2k
2 votes

How does a sanding mask compare with a disposable medical mask?

Particle Size-Selective Assessment of Protection of European Standard FFP Respirators and Surgical Masks against Particles-Tested with Human Subjects The tested FFP respirators and SMs in this ...
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  • 13.2k
1 vote

Does a KN95 that says 'non medical' helps to protect against COVID-19?

The mask protects people from the person wearing the mask. In surgery, my colleagues and I wear a mask to protect the patient's open wound from me. Do not make the mistake of thinking that you, as ...
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