Earthcom 32 Support Module is composed of 5 Earthcom 32 arches, three 20 KW slow speed water cooled diesel generators, three 10,000 gallon underground fiberglass diesel tanks, decontamination stations, battery banks, inverters, shelving for spare parts and other supplies. Cooling and combustion air is filtered by 4 MCAS 600 NBC air filtration units supplying breathing quality air. This module includes, a battery bank, lighting, decontamination stations, storage shelves, AC washer and Dryers, trash compactors, and spare parts. This unit can operate as a "stand alone" unit but is usually connected by tunnel to another structure. Exhaust and cooling air are mixed to avoid thermal signatures by ground and airborne target acquisition equipment.