Hi Everyone, It has been a long time since I've been on! I live in a housen where i sublet rooms in order to cover my rent to help make ends meet. i found out that the couple in one of my rooms has been smoking there every night for a year and it smells terrible. the new tenant who has already signed the lease long distance from tawain is going to have to endure the toxicity. i'm really worried about him. what can i do to elminate the toxins? I heard smoke stays in the walls and the floors.