Respiratory filter and sampling device

Details Respiratory filter and sampling device Respiratory filter and sampling device

1997-04-09

1998-06-16

Chiesa, Richard L.

Gas separation

Two or more separators

55485, 55486, 55491, 55496, 55DIG33, 55DIG35, 12820227, 12820617, B01D 3530

Patent

active

057662860

ABSTRACT:
A combination respiratory filter and sampling device has been developed which collects airborne contaminants for respiratory exposure measurements. The devices, which fit existing commercial half-mask respirators, are generally smaller and lighter in weight than existing filters, and have low resistance to airflow, so they can be comfortably worn by people performing their normal work duties. Each device consists of at least a front, a middle and a back section which can be independently separated and analyzed by traditional laboratory techniques. The filtering and sampling media thicknesses and types can be adapted to target specific compounds.

REFERENCES:
patent: 1003302 (1911-09-01), Weber-Stierlin
patent: 1499864 (1924-07-01), Gordon
patent: 4141703 (1979-02-01), Mulchi
patent: 5651810 (1997-07-01), Flaherty et al.

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