Medical oxygen ventiur mask adjustable of 2 color

The venturi mask, also known as an air-entrainment mask, is a medical device to deliver a known oxygen concentration to patients on controlled oxygen therapy.

Material: medical level PVC;

Size: XL, adult, child, neonate;

Package: 1pc/bag, 50pcs/ctn;

Carton size: 48*38*25cm

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