You know what they say, an ounce of prevention is worth, well... something. But seriously, Just open your window for like 5 minutes to let some fresh air in and bad air out. (If you dont open your window the air is just gonna sit in your room, the smell has to go somewhere.) Theres also odor neutralizers, like oust or neutra air. They mostly just cover it up though, I dont know how well they actually "neutralize"