HELP ASAP

So I have me and my daughter staying with my friend because I had left an abusive relationship and I couldn’t stay with my grandfather until tomorrow evening. The problem is they smoke like ALOT. A lot to where it’s hard for me to breath. I’ve made hints and stuff like opening the window and having the ac on all night, but I’m scared for my 1 year old daughter. I feel so bad as a mom because I know it’s bad, like so bad but I don’t have any other option. Can someone please tell me some way to uncongest her nose ways. She’s asleep and I don’t want to wake her but I’m worried. I’m also 18 weeks pregnant. Please mommas help me.