Cartridges come with a new inhalation valve for less maintenance and fewer parts to inventoryCartridges snap-in for easy replacementConforms to the contours of your face without pressure pointsExtra wide flange seals easily and stays sealed even...
Cartridges come with a new inhalation valve for less maintenance and fewer parts to inventoryCartridges snap-in for easy replacementConforms to the contours of your face without pressure pointsExtra wide flange seals easily and stays sealed even...