A sheltering system comprised of a housing unit made of at least one panel connected to a base with one or more entrances into the housing unit and a structural framework with at least one beam that extends the length or width of a panel or base on the housing unit. The beam has at least one notch near the joining of two panels or a panel and the base. The housing unit may be connected to an air intake system that allows for air to move into the interior of the housing unit and then egress out.