Waterwall structures are self inflating, water-filled structures that provide a high level of protection to people and property against a range of terrorist devices, including those containing chemical, biological, and radiological agents. Manufactured from poly-vinyl-chloride (PVC) coated fabric, Waterwall structures typically take 10 minutes or less to fill. The water can then be emptied out and the unit stored for future use. Waterwall products of varying shapes and sizes have been designed to contain and isolate devices ranging in size from a shoe to a car bomb.