Yeah, I view it as a baseline. I mean, most people are wearing cloth masks, which are more for other’s protection than your own… so unless you’re wearing proper inhalation protection this is all meaningless posturing.
But, if I saw higher values, it doesn’t mean that I take off the mask… but it does probably mean that a surgical mask isn’t going to do much. Fortunately, I’ve got a good n95 with a gel seal so I know it’s relatively safe.
The thing that boggles my mind is the protection of restaurants. I mean, it was a restaurant incident that first demonstrated the aerosolized nature of the pandemic… why are we encouraging people to sit around in a place where they have to take masks off?