Abstract: The effect of the facial dimensions on the suitability and the facial seal of the pressure oxygen mask was investigated. The results showed that the pressure pain on the face has a close relationship with the vertical distance of the nose medium (p<0.05). It was suggested that the vertical distance of the nose medium plays an important role in the comfort of the pressure oxygen mask and is an important dimension for oxygen mask designing.

Key words: pr essur e oxygen mask, comfort, anthr opometr y