Hi. Today we recommend resmed nasal pad for everyone. Soft and does not hurt the skin. It can be used repeatedly for 1000 times without leaving any traces, so you can use it with confidence. One side is adhesive and fits your machine. One side can be in direct contact with the skin. resmed nasal pad can also be washed with water, more clean and tidy. Use it with confidence, we also support customized model size, etc., more possibilities of resmed nasal pad are waiting for you to discover.