breathe (something) in

Use the phrase "breathe ___ in" to talk about something that enters your body when you breathe.

The fumes are toxic. Be careful not to breathe them in too much.

We mostly use this phrase to talk about breathing in negative or harmful things, but you can also "breathe in" something good:

I love going out into the mountains and breathing in that fresh mountain air.

This phrase appears in these lessons: