How do people people continually snort drugs without filling their lungs?

Question

I have always wondered, to those that snort drugs (cocaine, tobacco, ketamine, whatever else) how do they keep doing it without it building up in the lungs?

Does it just keep building up in the lungs until you can’t breathe anymore? Do the lungs just fill up with powder? If so, wouldn’t you only be able to use the drug so many times before you literally suffocate?

Thanks to you all in advance, really baffled on this one 🙂

Edit: Answered, thank you to all that contributed!

In: 5

Answer 1

Because you have a nose and sinuses lined with mucus that are designed to help trap stuff I’m them so it doesn’t get to your lungs. Otherwise every bit of dust, smoke, dirt and other junk would build in your lungs. But like all things in the body, they aren’t perfect.