Why should you use a face mask?
SARS-CoV-2, the virus that causes the disease, Covid-19 is spread by sharing breaths. When we breathe, water particles are released. The virus “attaches” to the water. The air-water particles are much larger and are easier to filter out than covid. A good visual example of what happens is exhaling when it is cold outside. Water droplets form in the air. Face Masks and Covid Risks in Homes is important to know about.

How tight the mask fits your face is very important. N95 masks are tight. Surgical masks are loose. They protect the healthcare worker from giving bacteria or viruses to the patient during surgery.
The amount of virus exposure is a critical factor. The riskiest people are those who have symptoms such as coughing and sneezing. If infected, they expel large amounts of particles containing more virus.
What if you want more protection?
No face mask discussed in this post can keep outside air from coming in. You have to breathe the air to live.
To be safest, don’t let any person’s breath come inside your lungs. Wear a full body and head covering with oxygen supplied through a hose. The ultimate is a special containment room with no outside air coming in and air going out completely cleaned, used by pathogen researchers. Hoses run overhead from the air system to the researchers.
You may have seen recently on TV news that nurses and doctors caring for Covid patients sometimes use a portable device on their backs with long air hoses coming to their head and face coverings. They have complete body and head protection. I assume they use portable heavy-duty battery-operated air cleaners for the room air.
Which type of face masks to use inside homes
Click “continue reading” link for info about FDA approved n95 and surgical masks plus some info on cloth masks.
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