Air cooling and ventilation apparatus; system for air distribution, heating, and refrigeration composed primarily of ducts made of fabric through which temperature-conditioned air is delivered

NON-METAL VENTILATING DUCTS FOR USE IN HEATING AND COOLING AND AIR DISTRIBUTION ENVIRONMENTS, NAMELY, FABRIC BASED DUCTS, FOR USE IN VENTILATION, HEATING AND COOLING, FABRIC BASED DUCTS WHICH ARE SMOOTH OR INCORPORATE PERFORATION HOLES IN THE DUCT SURFACE, FABRIC BASED DUCTS WITH SLOT DIFFUSERS OR NOZZLES, FABRIC DUCTS FOR AIR DISTRIBUTION, AND FOR USE IN HEATING AND COOLING