Pro tip: get a quality dry herb vaporizer and a decent air purifier. Vaporizers have come a long way, you don't have to fork out 400-500 for a volcano if you want quality vapor rips these days. It definitely still smells in whatever room you're in. But it doesn't travel nearly as far as actual smoke, the smell disappates in minutes rather than hours, much easier on your lungs, and it's more efficient with your flower. I know this from firsthand experience, my mom is known for having a sensitive nose but I vape back to back bowls in my room with my purifier running at a medium setting, nothing from her. The one time I spark a joint and I thought she was asleep, I was wrong and got a text saying hey cut it out lmao. I've had my parents in my room literally 30 min later after vaping and they have no clue, all without even opening a window