E10
The E10 is a totally self-contained 40 psi ellipsoid underground disaster shelter designed to protect 10 adults for long periods or 20 people for short durations such as during tornadoes. The product was specifically designed and developed to protect  people during and after disasters such as tornadoes, hurricanes, earthquakes, storms, forest fires, power failures, nuclear power plant accidents, nuclear/chemical terrorism, and full-scale protracted nuclear, chemical and biological war.  A tremendous effort has been made to think of every conceivable incident that shelterists could face in the E10 shelter.  Many geometrical shapes were experimented with before finalizing the E10. The E10 includes the fiberglass ellipsoid structure, fiberglass entranceway with stairwell, fiberglass/composite hatch, MCAS-40 air filter, 125 gallon fiberglass septic tank, 600 gallon internal water tank,  fiberglass floor, fiberglass counter, fiberglass shower wall, fiberglass battery housing, toilet, floor, eighteen 12- volt deep cycle batteries, gray water tank,  all wiring, all plumbing, etc.  The E10 requires approximately 1 man-hour to connect the entranceway to the shelter.