Profile: Rescue Concepts Inc (RCI) provides state-of-the art training and quality equipment to industrial facilities, fire departments, sar teams, cavers and climbers. Constant flow air-line respirators are designed to maintain a slight positive pressure of air inside the face piece whether the wearer is inhaling or exhaling. The affinity foldable respirator protects against tuberculosis infection and is well-suited for medical applications. The smooth inner lining of the respirator provides a tight seal and a soft, comfortable fit. An optional exhalation valve offers low exhalation resistance as it removes hot exhaled breath, making the respirator cooler and easier to wear for extended periods of time.