The review says they leaked when stacked on each other. Mine leaked any time on their side which kind of makes them almost useless for transport in my car if I needed to do that. I won’t be buying anymore of them. They are fine sitting in my closet not going anywhere, but I want something more versatile.
When I was in Taiwan during SARS, we were all wearing masks. Temps were taken upon entering buildings. And our school had a contingency plan should we have been shut down. I may be misremembering-but I think the government provided meals to those who were involuntarily quarantined.
I bought 3 Reliance Rhinos, and they leaked when I laid them horizontally. They also leaked when I filled them above the airflow valve.