CWS4000 Patient Warmer & Blanket T he Cocoon Convective Warming Machine, CWS 4000, is a mains powered, microprocessor-controlled device.  It delivers a continuous flow of temperature-controlled air through a flexible hose to the warming blanket. The CWS 4000 is lightweight, compact and easy to use. Features include microprocessor controlled, digital temperature sensor system, automatic step-down from 46°C to 43°C after 10 minutes, built in safety monitoring system and a filter status indicator. Other features include washable plastic hose cover and multiple mounting options including cart, stand, IV pole, floor or bed rail - retractable bed hooks for convenience. Dual thermostats, self-resetting at 53 degrees Heating element has a thermal safety switch and thermal fuse Air intake through side vents HEPA filter rated at 0.2 micron efficiency Microprocessor controlled Protective hose cover Self monitoring life and progress filter status Microprocessor controlled Purpose built testing port using HyperTerminal program Retractable bed hook brackets IV pole or stand/trolley mount