Dh had to do some diy work in dd's bedroom, which involved lifting the carpet and cutting floor boards with some sort of saw/grinder. Even though the windows were wide open and I've aired the room every day since (this was last Sunday), her room still smells musty and 'smokey' (like a burnt match smell). There are no fumes in there, just the smell. I have frebreezed the curtains and most furniture was out of the room at the time(all except wardrobe). Hoovered everywhere. But the smell is still there.
How can I freshen the room up?