San Francisco : Architect and Engineer, Inc · leaf 74
75 degrees upto the ideal amount—about 30 per cent. This averagewas maintained in all parts of the Tribune where thetests were made. The bacterial count Is a measure of the dust contentand general purity of the air. When because of filtra-tion the dust content is low, the number of colonies ofair… … Here is the DELCO CONDITIONAIR typical of the GeneralMotors value in the Delco-Frigidaire line. Fired byoil or gas, this famousproduct furnishes com-plete winter or yearround air conditioningat remarkably low cost. Ask For Free Specifications of the Deico Conditionair Or Other Heating and Air…
Architecture · Building
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