PranaMask 

PranaMask was a passion project from several years ago. The idea was strong enough to get me into a Silicon Valley incubator. It was hard to find a market then, but now it’s an absolute necessity.
I’m bringing the project back to life if not for the sake of the world, but certainly for my family. The technology has improved and become cheaper. Exhaust from cars is the primary source of pollution. It’s a problem which won’t go away. And I haven’t found a better version of my solution.

America is getting uberized and fewer cars will be needed in the future. China is taking a top-down approach to keep cars off the road. Masks are popular over there.

India has done the least to solve this problem. It’s nearly impossible to go for a jog or a stroll in a major Indian city.

PranaMask link