Identifier: Catalog13CarrierAirWashersAndHumidifiersAppliedToPublicOfficeAnd (find matches)
Title: Catalog 13: Carrier air washers and humidifiers: applied to public office and industrial buildings, with notes on humidity
Year: 1913 (1910s)
Authors: Carrier Air Conditioning Company of America
Subjects: air purification -- catalogs humidity control equipment and supplies -- catalogs Division 23 HVAC air-cleaning devices particulate air-filtration humidity control equipment humidifiers
Publisher: Carrier Air Conditioning Company of America
Contributing Library: MBJ collection

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wish to quote from the following gentlemen who havestudied this question from various viewpoints: Dr. Henry Mitchell Smith, in a paper read before theBrooklyn Medical Society, entitled Indoor Humidity, says: The point to be emphasized is that every time we step out of ourhouses during the winter season, we pass from an atmosphere with arelative humidity of about 30 per cent into one with a relative humidityof, on an average, 70 per cent. Such a sharp and violent contrast mustbe productive of harm, particularly to the delicate mucous membranesof the upper air passages. The skin and the mucous membranes of the respiratory passages arethe principal sufferers, since these tissues are always kept moist withtheir own secretions and from them water is freely abstracted to satisfythis large saturation deficit, such air passing with every inspiration overthe moistening surfaces nature has provided in the mucous membranes,calling for an enormous output of the fluid elements of these tissues. 73
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Carrier Automatic Humidity Control Using Closed Water Heaterand Mixing Valve. Installed in Bankers Trust Building, New York i 74 Carrier Air Conditioning Company — of America This leads to glandular over-activity and its consequent evils, the elabor-ation of which subject the scope of this paper does not permit. The overheating of our houses has been accepted as a prominentcause of catarrh/ but I am confident that the low relative humidityand consequently the large saturation deficit of the aqueous vapor inthe atmosphere of our rooms in winter is much more important thanis the overheating in itself, and it may be doubted whether the so-calleddamp climate of the sea coast or the shores of large inland lakes is initself so responsible for the above diseases, as has been generally supposed.It seems much more likely that the great contrast between the indoorand the outdoor relative humidity in those regions is the real factor. The former (65 to 68 deg. and 60 per cent) felt warm and bal

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