this review title is: store them at room temperature and the content is: store these at room temperature cold weather seems to deplete the propellant one cannister worked great and i got a decent amount of sprays from it during warm weather the other can however lost a great deal of pressure during cold weather and i only got around sprays out of it before it was empty.there are other information for this review, one is this reviewer did purchase it and the other is 1 people think this review is helpful.