TY - GEN AU - Garrivier, P C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1972-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.710-5 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1972 TI - Use of an air-to-air heat exchanger to recover heat from air exhausted by mechanical ventilation: ER -