Is there anything that helps neutralise horrible cannabis smells? Do air purifiers do anything, or are they just a waste of money?
Child has just moved into halls and the smell of weed from people smoking outside nearby isn't nice. She does like to have her window open regularly which won't help, but it's not nice to have your window shut all the time either...
Moving rooms not an option and it's not students smoking so nothing to be done in that respect either.