[Serious] How do you smoke weed indoors without odor

There's got to be some technology that does this. No sploofs!

Currently i crack a window, put a small square fan in it, and blow my exhaust through the fan. I use a vaporizer which cuts down the smell a lot, but there is still a lingering odor the night of, and sometimes the following morning.

I would prefer no odor at all, immediately. Any help is appreciated.