CrazyCap: The best purifier of 2021

This compact purifier is a must-have for any hiker or traveler who wants to keep bulk down. The CrazyCap uses UV rays to eliminate viruses, bacteria, and protozoa; just screw it on to the included stainless-steel bottle, press the “on” button, and wait as it disinfects your water. Two modes run the purifier for either one or two minutes, depending on water quality (you will need to prefilter silty water, though)....