You just need to purchase them from a reliable source because Amazon's full of Chinese counterfeit EZ DUZ ITs that uses cheap ass metal in the blade that dull in weeks instead of decades like the real deal.

They test for the same protein.

I’m hesitant to recommend the Flowflex just because they had a massive counterfeit problem: https://www.fda.gov/medical-devices/coronavirus-covid-19-and-medical-devices/counterfeit-home-otc-covid-19-diagnostic-tests#diagnostic

PCR’s are incredibly sensitive, so you want to be sure you can see the cycle count. PCR doesn’t check for the virus, It checks for viral RNA fragments, which can be shed for months after you are contagious. That RATs actually are looking for certain surface proteins, binding to them, then that is what is deposited on the positive line. The BinaxNOW tests will flip positive if there’s the N (Neuclocapsid) protein in your nose, which is a certain sign COVID is actively reproducing in your airways.

While true, they’re quite effective for point in time “am I contagious at this second”

If you’ve got antigens in your nose, you are shedding.

They've been making "slasher bowls" which are the bags with flat bottoms so they're really good for storage. The biggest problem is the material picks up odors like nobody's business or that's all I'd use.

They're not very space efficient is my problem with them: They don't stack well in a freezer, they leave tons of space around them (as they are circles), but they are cheap and I had a bunch.