Table 3 The checklist of barriers to device use

1

When using the device, my mouth, throat or nose feels dry or cold. I feel my nose is blocked and cannot breathe properly, So, I often breathe through mouth

2

I feel uneasy wearing the mask (e.g. it irritates my face or causes perspiration)

3

I need to go to the bathroom at night

4

The noise of device disturbs me and my spouse

5

Air leakage from edges is disturbing

6

Using the device makes me nervous and I feel suffocated

7

The air pressed into my nose disturbs me

8

Often, I fall asleep before using the device

9

While asleep, I take off the mask

10

I have nightmares

11

Despite using the device, I keep snoring. Sometimes I feel suffocated as I feel something jerks into my throat

12

I have gritting teeth

13

I have a running nose

14

The water stuck in tubes and the mask is not feeling good

15

At night, I feel anxious or depressed and sometimes sleepless

16

At night, I cough

17

The device disrupts my sleeping position. Sometimes I prefer to sleep one side or face-down but the tube is too short or gets tangled

18

I see no use of it

19

I was travelling