The Bombnado is a premade disaster shelter that the manufacturer says is the first available for under $20,000. The shelter features an air purifying system and LED lighting. It also offers 160 cubic feet of storage under the laminate flooring.
The base model size is 8 ft. by 8 ft. All models are 8 ft. wide and, in addition to the base model, lengths include: 10 ft., 12 ft., 16 ft., and 20 ft. The entrance hatch is 3 ft. by 3 ft.
The Bombnado company also offers a variety of options, and each is built to FEMA P-361.