MONTREAL -- In the parking lot of the CARE Montreal shelter on Viau, there is a small hangar-shaped container protruding above a bank of snow. A closer look reveals small holes that act as ventilation, and a layer of foil insulation. This is a product made in the Czech Republic called an igloo. According to Michel Monette, CARE Montreal’s general manager, the organization has bought 20 of the small shelters — five of which can house two people. In one of the singles, an individual inside can stay 15 degrees warmer than the outside temperature. In one of the doubles, two people can stay 20 degrees warmer.