This peculiar instrument with its rather rude proboscis is not a toy or a "specialty" aid. It's a breath meter designed to help hospital inmates retain clear breathing and healthy lungs. You are supposed to suck in air through the tube as much as you can, and it will read out, through adjusted meters on the main stand, how much air you can breathe in. It's supposed to prevent pneumonia or airborne disease by giving you lots of breathing practice. The meter uses a rattle in a column to show your level. I still have mine but I will probably consign it to plastic recycling someday.
Black tech pen on sketchbook page, 4 1/4" x 3", June 2018.
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