ResMed AirTouch N30i Frame Size:Standard Because both the DreamStation 2

Because both the DreamStation 2 filter and the original DreamStation filter use a light blue plastic housing and are sold under similar names

and pollen grains

The fabric surface also has more grip than smooth silicone

Exhaled air exits through QuietAir woven-mesh venting integrated into the P10 frame

ResMed AirTouch N30i Frame Size:Standard Because both the DreamStation 2What makes the N30i different from a standard nasal mask Most nasal CPAP masks seal by pressing a cushion against the bridge of the nose, the cheeks, and the area above the upper lip covering the nose entirely and relying on consistent pressure across a large surface to hold the seal. The N30i doesn't work that way. Its cushion is a nasal cradle: a curved piece that sits beneath the nose rather than over it, pressing gently against the soft tissue