Abstract: A bacteria destroying apparatus for use with a voice communication system such as a telephone system, and telephone systems which have such bacteria destroying apparatus included therewith. The bacteria destroying apparatus may adopt the form of a relatively thin, flat disc which is located in the mouthpiece of a telephone handset, and preferably in close proximity to the diaphram of the handset or any other portion of the voice communication system which normally collects a substantial amount of bacteria thereon as, for example, a result of close proximity of a user's mouth. The bacteria destroying apparatus generates radiation in a wave length range which is effective to destroy bacteria. In one embodiment, the radiation is generated when the element itself is electrically energized.

Abstract: A dome structure having a plurality of isolatable and preferably environmentally isolatable and inhabitable compartments. These inhabitable compartments are preferably capable of generating an environmental condition capable of supporting animal life and preferably human life. The dome structure comprises a first upper dome section and a first lower dome section which form a first environmentally isolated dome chamber therebetween. The apparatus includes a second upper dome section having a peripheral size smaller than the first upper dome section. A second lower dome section has a peripheral size smaller than the first lower dome section and is capable of being attached to the second upper dome section to form a second environmentally isolated dome chamber.