If you’re looking for hard to find drafts in your house, burn a stick of incense and hold it up to the walls/windows/doors. The smoke from the incense will change direction as a draft comes through.
Via Lifehacker
If you’re looking for hard to find drafts in your house, burn a stick of incense and hold it up to the walls/windows/doors. The smoke from the incense will change direction as a draft comes through.
Via Lifehacker