Underground shelters made of metal for providing a secure location to store individuals and goods for temporary and long-term storage; modular underground shelters made of metal, namely, configured to be transported and assembled at intended location; underground storage cellars made of metal, namely, wine cellars, gun safe cellars, natural disaster shelters, fire-proof safe cellars, bomb shelters, safe rooms; shelter pods made of metal; Air-intake systems comprised of metal tubes and filters for use with underground shelters

Air-intake systems comprised of non-metal rigid tubing and filters for use with underground shelters