We at Critical Air Technologies are your lab specialists for Northern and Southern California, Nevada, Arizona, New Mexico and West Texas. We work with Universities, Hospitals, Pharmacies and other locations where there is a need to control pressure in the space. We represent Accutrol which is the best system on the market to use in your Critical Environment spaces. Our valve operates at very low pressures, measures true airflow, can be mounted in any direction, very quiet and is open to all control systems. The AccuValve is a two time ASHRAE innovation award winner. Feel free to reach out to me to see a live demonstration of our valve. We also have a full line of Air Flow Measuring Stations, pressure monitors and we now represent Antrum which is a Centralized Sensing system which can lower your buildings Air Change Rates.