Document 4Jonao3XKJRbxjQEROve06OjV

134 CHAPTER 6 1950 Guide " Physiological Response of Subjects Exposed to High Effective Temperatures and Elevated Mean Radiant Temperatures, by C. M. Humphreys, Oscar Imalis and Carl Gutberlet (A.S.H.V.E. Transactions, Vol. 52,1946, p. 153). * Life, Heat and Altitude, by David B. Dill (Harvard University Press, Cam bridge, 1938). ,0 The Upper Limits of Environmental Heat and Humidity Tolerated by Accli matized Men, Working in Hot Environments, by Ludwig W. Eichna, William F. Ashe, William B. Bean and Walter B. Shelley (The Journal of Industrial Hygiene and Toxi cology, Vol. 27, March, 1945, p. 59). 11 A.S.H.V.E. Research Report No. 1188--Local Cooling of Workers in Hot Industry, by F. C. Houghten, M. B. Ferderber and Carl Gutberlet (A.S.H.V.R Transactions, Vol. 47, 1941, p. 403). ** A.S.H.V.E. Research Report No. 673--Determination of the Comfort Zone, by F. C. Houghten and C. P. Yaglou (A.S.H.V.E. Transactions, Vol. 29, 1923,p. 361). A.S.H.V.E. Research Report No. 691--Cooling Effect on Human Beings Produced by Various Air Velocities, by F. C. Houghten and C. P. Yaglou (A.S.H.V.E. Trans actions, Vol. 30, 1924, p. 193). A.S.H.V.E. Research Report No. 717--Effective Temperature with Clothing, by C. P. Yaglou and W. E. Miller (A.S.H.V.E. Trans actions, Vol. 31, 1925, p. 89). A.S.H.V.E. Research Report No. 755--Effective Temperature for Persons Lightly Clothed and Working in Still Air, by F. C. Hough ten, W. W. Teague and W. E. Miller (A.S.H.V.E. Transactions, Vol. 32,1926, p. 315). How to Use the Effective Temperature Index and Comfort Charts, by C. P. Yaglou, W. H. Carrier, Dr. E. V. Hill, F. C. Houghten and J. H. Walker (A.S.H.V.E. Trans actions, Vol. 38,1932, p. 410). " A.S.H.V.E. Research Report No. 1196--Comfort with Summer Air Condition ing, by Thomas Chester, N. D. Adams, C. R. Bellamy, G. D. Fife, E. P. Heckel, Dr. W. J. McConnell, F. C. McIntosh, A. B. Newton, B. F. Raber and C. Tasker (A.S.H.V.E. Transactions, Vol. 48,1942, p. 107). 74 Conditions for Comfort, by C. S. Leopold (A.S.H.V.E. Transactions, Vol. 53, 1947, p. 295). 11 A.S.H.V.E. Research Report No. 1102--Shock Experiences of 275 Workers After Entering and Leaving Cooled and Air Conditioned Offices, by A. B. Newton, F. C. Houghten, Carl Gutberlet, R. W. Qualley and M. C. W. Tomlinson (A.S.H.V.E. Transactions, Vol. 44,1938, p. 571). Physiologic Adjustments of Human Beings to Sudden Change in Environment, by N. Glickman, T. Inouye, S. E. Telser, R. W. Keeton, F. K. Hick and M. K. Fahnestock (A.S.H.V.E. Transactions, Vol. 53, 1947, p. 327). M A.S.H.V.E. Research Report No. 1055--Cooling Requirements for Summer Comfort Air Conditioning, by F. C. Houghten, F. E. Giesecke, C. Tasker and Carl Gutberlet (A.S.H.V.E. Transactions, Vol. 43, 1937, p. 145). 17 A.S.H.V.E. Research Report No. 1012--Study of Summer Cooling in the Re search Residence for the Summer of 1934, by A. P. Kratz, S. Konzo, M. K. Fahne stock and E. L. Broderick (A.S.H.V.E. Transactions, Vol. 41,1935, p. 207). ** A.S.H.V.E. Research Report No. 755--Effective Temperature for Persons Lightly Clothed and Working in Still Air, by F. C. Houghten, W. W. Teague and W. E. Miller (A.S.H.V.E. Transactions, Vol. 32, 1926, p. 315). * A Practical System of Units for the Description of the Heat Exchange of Man with His Environment, by A. P. Gagge, A. C. Burton, and H. C. Bazett (Science, Vol. 94, 1941, p. 428). Thermal Insulation of Clothing, by C. P. Yaglou (A.S.H.V.E. Journal Section, Healing, Piping and Air Conditioning, Sept. 1948, p. 107). *' Application of Air Conditioning to Premature Nurseries in Hospitals, by C. P. Yaglou, Philip Drinker and K. D. Blackfan (A.S.H.V.E. Transactions, Vol. 36 1930, p. 383). CHAPTER 7 air conditioning in the prevention and treatment of disease Sanitary Ventilation, Control of Airborne Infection, Value of Air Cooling Under Ba Tropical Conditions, Treatment of Disease, Operating Rooms, Nurseries for Premature Infants, Fever Therapy, Cold Therapy, Allergic Disorders, Oxygen Therapy, General Hospital Air Conditioning THE late war caused an increase of interest in the preventive aspects of air conditioning. It re-emphasized the importance of the control of airborne infection and demonstrated the value of a}r cooling under tropical conditions for the prevention of heat rash, for promoting proper rest and sleep, and in the convalescence of patients. SANITARY VENTILATION During the last 15 years great popular interest has been aroused in the spread of respiratory infection indoors and control by ventilation or its sanitary equivalent by air disinfection. Three important documents have appeared in English, Swedish and French literature in the last year. In this country, where the study initiated, the Council of Physical Medicine of the American Medical Association approved the radiant dis infection of air in 1943, and two sub-committees of the Committee on Research and Standards of the American Public Health Association have reported favorably upon the control of airborne infection by sanitary ventilation and on air sanitation, respectively. The work of a Technical Advisory Committee on Air Sterilization of this Society has from time to time reported progress in the Journal since 1944, and has approved a set of definitions, formulations and factors which is now being reviewed by the Committee of Research and Standards of the A.P.H.A. with the purpose of joint adoption by the Association and the Society. Since this important new field of sanitary ventilation is yet in its infancy, '-; just emerging from the research and development stage, it has not been possible to prepare a comprehensive treatment in the Guide. Those pro fessionally interested must still refer to the official publications of the or ganizations listed, and the enormous technical literature on the subject which they review. The following section on Control of Airborne Infec tion gives some idea of the scope of the subject. CONTROL OF AIRBORNE INFECTION The majority of airborne diseases are spread indoors where people gather. Any program of air sanitation is influenced by a number of factors. In the winter months, the closing of doors, windows and other means of access to the outside air to conserve warmth, as well as the crowding of persons indoors, provides conditions conducive to a high incidence of contagion. This seasonal phenomenon, illustrated in Fig. 1 which represents a study made by the U. S. Public Health Service, will concern the ventilating engineer in so far as air quality (determined by temperature, humidity, air replenishment and type of air movement and by freedom from contamina- 135