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Table 2 Results of usage, cleaning, and storage habits of current OPEP devices

From: A short-term evaluation of a prototype disposable Oscillating Positive Expiratory Pressure (OPEP) device in a cohort of children with cystic fibrosis

Frequency of use %
Occasional (only when unwell) 11
Infrequent (2–3 times per week) 14
Once a day 25
Twice a day 44
Three or more times per day 6
Cleaning frequency %
After each use 53
Daily 17
Every second day 6
Twice a week 5
Weekly 11
Bi-weekly 3
Not at all 5
Duration of cleaning %
Less than 5 min 15
5–10 min 21
10–15 min 22
15–20 min 15
More than 20 min 27
Duration of use %
Less than 5 min 6
5–10 min 47
More than 10 min 25
Number of breaths performed 22
Methods of cleaning %
Hand wash 50
Steriliser 15
Handwash + steriliser 32
Dishwasher 3
Storage habits %
Open un-protected (countertop/windowsill) 24
Open protected (cupboard/drawer) 18
Sealed container (plastic box/bag) 46
Non-sealed container (soft case) 12