Possible Option

It works so well we can actually feel the change in the weight of the air at about our wrist distance away, assuming you stretch your arms out straight out from your body.  The air feels literally heavier on our hands, as we wiggle our fingers.  When we are sitting anywhere, this is all we use — particularly nice when out at restaurants.  Even at family gathering it’s like no one is wearing anything.  They are that quiet and nothing is covering our faces.  There are three speeds also.  When we are walking we slip on a hat shield (shown later) as when walking air would push into our faces faster than any filter could work.  If everyone was wearing one, we would literally be making a connected clean air environment.

We are adding the face shield when we are walking somewhere quickly.  When we are just sitting, or eating at a restaurant, we don’t really see the need and just go with the air filter.
 

I can‘t promise you that this is fool-proof any more than anyone else can, but I think filtering the air in some way is the direction to go.  I’m just not willing to get into a constant regiment of vaccinations for all the reasons you can imagine.  This filters the air surrounding your face.  There is no mask to block your breathing, or that you constantly have to adjust because it slips down your nose.  There is no fungus in your lungs from breathing your own exhaled humid breath. Key, is that it also filters YOUR BREATH, so if you are infectious it will handle that too.  If you are sitting, not walking, I don’t even see why you would need a face shield, as this will filter your personal space.  It is certainly more comfortable, light weight and quiet.