Spirometer, Spengler, Circa 1960’s


Found on a French Ebay listing.  Described (via Google translate) as “Spirometer in very good condition, sold with box but without rubber hose disposable tips. This device calculates the expired volume, needle works fine. Object functional or decorative.”  Measured only expiratory volume.  The thin tube in the front is a disposable mouthpiece.

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