1. Are you supposed to clean the mask frame (not the cushion part, but the part that has the butterfly chute and the elbow)? My DME supplier doesn't list this part as necessary to be cleaned. See my pic below:

2. Does the elbow detach from the mask frame?
3. Does the cushion detach from the mask (not from the mask frame, but from the plastic rigid mask itself, the part which attaches to the mask frame)?
4. My cushion turned white when I soaked it in soapy water for a few hours, then in clean water for a few hours (see my pic below). It is supposed to be translucent. I used to just dab soap on the cushion and hand wash quickly, but then there was a soapy smell when I put it on at night. So I started soaking.

What should I do?