Learn how they form and the steps you can take to help prevent pressure ulcer development from masks during noninvasive ventilation (NIV).
A mask that is too big places unnecessary pressure on the face.
A mask that is too small causes unwanted friction.
Shifting the mask without loosening the straps pulls on the face causing unwanted friction and shear forces.
If the mask is not sitting symmetrically, it may place extra pressure on facial areas.