Monitoring airflow from a person is accomplished by using a central server arranged to receive and communicate data together with at least one microprocessor-based subsystem. The subsystem includes a microprocessor, a display and a memory. It presents information to the person on the display and processes...http://www.google.de/patents/US20060009706?utm_source=gb-gplus-sharePatent US20060009706 - System and method for monitoring air flow from a person
