When your air filters are clogged, your HVAC system has to work much harder to pull air through. And it’s not just a slight increase in effort—imagine trying to breathe through a straw while ...

A measure of how effectively the filter removed flavor taints, along with the resulting odor taints, that CR added to plain water with minimal intrinsic flavor and odor (the "control" water).

How does it work? Imagine you're sipping a smoothie, but before you take a gulp, you have a handy straw filter. That's kind ...