Four masks should be plenty if you're in your car alone driving down the road. If you're going to be in the grocery store where you might encounter other people, you really need at least five masks to be sure your safe. Six masks might even be appropriate then just to be sure you're sure.
I need a doctor pede to start advocating for four masks. Just keep going up one mask layer each time they buy it. Hit absurdity and keep driving by.
Four masks should be plenty if you're in your car alone driving down the road. If you're going to be in the grocery store where you might encounter other people, you really need at least five masks to be sure your safe. Six masks might even be appropriate then just to be sure you're sure.
Might as well jump to lucky 7
NIAID Advisory System: Severe (red) 9 masks High (orange) 6 masks Elevated (yellow) 4 masks Guarded (blue) 3 masks Low (green) 2 masks