Now, I’m not doing that right now, but there’s little reason to think major US carriers aren’t doing what they say they’re doing and if the air change mechanism wasn’t working, you’d see oxygen masks deploying as that’s the mechanism by which the aircraft remains pressurized.
It was nice not being sick for so many months.
2 weeks after they went back. Bam, everyone sick.
And that’s with intense mask rules and distancing
Non-fit homemade and non-rated masks help prevent others from getting sick. But if everyone had access to cheap N95 that actually prevented them from getting sick we'd be a lot better off. The kids would still be getting it and getting everyone sick at home/school because they wouldn't wear them consistently right, but people without kids at home wouldn't be getting sick at nearly the rate. Every bit counts.
If you live in a suburb or further out, basically every major grocery chain does pickup orders.
I order online, drive to the store, and an employee puts the groceries in my trunk. I never go inside.
It's also... free. So anyone with a car(most of us in the USA/CA) can do it.