Three rooms

Question

You wake up in a place you've never been before. You notice that there are three doors in front of you. behind each of the doors is a room with an exit. on each door there is a note. door #1 says "this room is filled with poisonous gas". door #2 says "this room has 15 lions in it that havent eaten in 3-5 years" and door #3 says "this room is filled with snipers and will shoot anyone who walks in". Which door should you pick?