Everyone is becoming more environmentally conscious nowadays especially with how mother nature is biting us back in the butt for our wasteful ways, and energy conservation has never been more important than it is now.

Doing their part as resourceful individuals, the guys at instructables are giving us a simple, if you can call it that, step-by-step guide on how to build your own USB charger that’s powered by your own breathing. Not your typical grade 2 DIY kit, it’s a little more technical than it looks, but once you get it running, you can breathe easily while charging a USB device as well. Unfortunately, it’s only estimated to churn out 5 volts, so I wouldn’t completely rely on this contraption to charge an iPod.

But what the heck, you get the chance to unleash the mad scientist in you while creating a nifty charger at the same time that will definitely come in handy especially when there’s a power outage.