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Spirometer

169

The device is composed of a transparent main body, base and central part divided into three chambers containing three small spheres of Red, Yellow and Blue colour and a connecting tube with a mouth piece. The device is non sterile, individually packed in a box.

The device is composed of a transparent main body, base and central part divided into three chambers containing three small spheres of Red, Yellow and Blue colour and a connecting tube with a mouth piece. The device is non sterile, individually packed in a box.