What is the Difference Between AirFit F20 and AirFit F30 full face CPAP Mask?

The main difference between the AirFit F20 and the AirFit F30 full face CPAP mask is that the AirFit F20 includes adaptive wings adjustable to the user's face shape. However, the AirFit F30 full face CPAP mask covers relatively less area of the user’s face.

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