Table 2.

Feedback provided to user for the corresponding quality assessed by iWash.

Assessed quality	Feedback provided to user
Missed step 1	Didn't rub both hands palm to palm
Missed step 2	Didn't rub right palm over left dorsum properly
Missed step 3	Didn't rub left palm over right dorsum properly
Missed step 4	Didn't put palm to palm with fingers interlaced properly
Missed step 5	Didn't clean right fingertips interlocked in left palm properly
Missed step 6	Didn't clean left fingertips interlocked in right palm properly
Missed step 7	Didn't rub left thumb clasped in right palm properly
Missed step 8	Didn't rub right thumb clasped in left palm properly
Missed step 9	Didn't rotationally rub right fingers on left palm properly
Missed step 10	Didn't rotationally rub left fingers on right palm properly
Duration less than 20 s	Didn't wash hands for enough duration
No missed steps and duration at least 20 s	Great job! You washed your hands perfectly.