What sizes of cannulas are there?

The largest number is the smallest cannula. Cannulas range from the 26g purple to the 14g orange. As a list: - 26g purple - 24g yellow - 22g Blue - 20g Red - 18g Green - 16g Grey - 14g Orange

What is the relief pressure dial on the ventilator?

The relief pressure dial on the ventilator ensures that the pressure of ventilation is not so high that it causes problems but allows it to be high enough to help ensure that the patient actually is ventilated. Read more...