Water is a nonnegotiable component for life, but unfortunately, this precious resource is a luxury for many around the world. Such disparity in the distribution of drinking water has inspired a number of water filters and purifiers to make any available water potable.

The selections in the slideshow below are some of the more innovative water filters and purifiers. There are solar-powered varieties, portable filters and even a straw that filters water on the fly. We even have large-scale pollution-fighting purifiers, like that planned within China’s Miyi Tower.