Discomfort associated with the nasal cannula or respiratory circuit

The contact with the cannula (nose and ear) was painful.

Because the respiratory circuit was inflexible and could be easily entangled, I felt uncomfortable moving.

I worried about the noise and vibration when water accumulated in the respiratory circuit.

Discomfort associated with air pressure

Feeling dryness in the nasal cavity and throat due to the strong wind pressure was uncomfortable.

Insomnia with discomfort

Because the respiratory circuit worried me and I had difficulty moving, my sleep was fragmented.