Abstract:A new type of air filter was developed and tested in the pure culturing of aerobic microorganisms. 2, This filter was compounded from layers of porous poly(viny1 alcohol) (PVA). When compared with the traditional glass wool filters, the PVA filters achieved high collection efficiency with considerably less resistance to air flow. The PVA filters will withstand temperatures of 130°C. One difficulty in evaluating high efficiency filters has been to get accurate measurements of the efficiency. Several workersz0 h… Show more
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