The Cannibis Grow Bible recommends the following:
1. "If possible move to another room."
2. "Clean the walls down with bleach if possible. You may have to repaint."
3. "If you use Mylar - replace it"
4. "Clean the entire room excluding electrical equipment- corners, pipes,
fittings in a bathroom with bleach."
5. "After cleaning you can consider smoking the room."
"Follow the instructions carefully and smoke bom# the room."
"You may need to repeat 7 to 10 days later."

Good luck!