Market capitalization means that every share of MSFT combined at the current price is worth $2.6T. The company has $100B cash on hand. That’s actual cash and investments that could be easily converted to cash. Substantially less than $2 trillion.

Its manufacturer claims the filter can remove far more contaminants than other filters. Yet the Big Berkey is not independently certified to NSF/ANSI standards, like our other filter picks are.

https://www.nytimes.com/wirecutter/reviews/big-berkey-water-filter-system/