The kids at Philips have just announced something called InstantTrust, a UV water purification system that heralds "the first time water can be disinfected instantly, efficiently and independent of water temperature," according to the typically understated Dutch press release. We can't pretend to fully understand how the technology works exactly (something about using ultraviolet light to wreak havoc on a microbe's DNA, which sounds pretty awesome) but we do know that clean drinking water is incredibly important — and that up until now, purifiers have been relatively slow, and you couldn't run hot water through them. According to the company, the new system is small enough to be embedded in household appliances, and it works independently of water temperature, meaning it can be used for both hot and cold taps. And for hot tubs. You know what that means: Hot tub survival condo party!