Table 1.
MaSK (Mask uSe and Knowledge) questionnaire
| Section A |
| 1.Sex M/F |
| 2.Age range: |
| (a) under 18 years old |
| (b) 18–30 years old |
| (c) 30–50 years old |
| (d) 50–70 years old |
| (e) over 70 years old |
| Section B |
| 1. Do you regularly use face masks and / or filtering facepiece respirators? |
| (a) Yes |
| (b) No |
| 2. How many hours per day do you wear a face mask or filtering facepiece respirators? |
| (a) less than 1 h |
| (b) 1–3 h |
| (c) 3–5 h |
| (d) more than 5 h |
| 3. Which type of mask(s) do you know? (multiple answers allowed) |
| (a) surgical mask |
| (b) FFP1 |
| (c) FFP2 |
| (d) FFP3 |
| (e) N95 |
| (f) Cloth mask |
| 4. Which type(s) do you use most frequently? (multiple answers allowed) |
| (a) surgical mask |
| (b) FFP1 |
| (c) FFP2 |
| (d) FFP3 |
| (e) N95 |
| (f) Cloth mask |
| 5. How long do you use a surgical mask before changing it? (if you do not use surgical masks answer on the basis of your opinion / knowledge): |
| (a) 4–8 h |
| (b) 1 day |
| (c) 2–5 days |
| (d) 1 week |
| (e) More than 1 week |
| 6. How long do you use a FFP1 before changing it? (if you do not use FFP1 answer on the basis of your opinion / knowledge): |
| (a)10–12 h |
| (b) 1 day |
| (c) 2–5 days |
| (d) 1 week |
| (e) More than 1 week |
| 7. How long do you use a FFP2 before changing it? (if you do not use FFP2 answer on the basis of your opinion / knowledge): |
| (a)10–12 h |
| (b) 1 day |
| (c) 2–5 days |
| (d) 1 week |
| (e) More than 1 week |
| 8. How long do you use a FFP3 before changing it? (if you do not use FFP3 answer on the basis of your opinion / knowledge): |
| (a)10–12 h |
| (b) 1 day |
| (c) 2–5 days |
| (d) 1 week |
| (e) More than 1 week |
| 9. When you are not wearing your mask or FFP, where do you usually put it? |
| (a) wrist / arm |
| (b) In a specific plastic bag |
| (c) I fold it and put in trousers pocket |
| (d) I always throw it away |
| (e) Other ( please specify) |
| 10. After you use a mask or FFP, how do you wash or disinfect it? |
| (a) Only with water |
| (b) With specific cleansers |
| (c) With alcohol |
| (d) I never clean or disinfect masks |
| (e) I always throw it away |
| (f) Other ( please specify) |
| 11. Where do you usually throw away your mask or FFP? |
| (a) In a whatever waste basket |
| (b) In a specific waste basket |
| (c) In general waste |
| (d) In organic waste |
| (e) In the paper waste |
| (f) Other ( please specify) |
| 12. In your opinion, do you believe that the use of masks or FFP represents a useful tool to prevent the spread of COVID-19? |
| (a) Yes |
| (b) No |
The MaSK questionnaire is composed by two section: i) Section A investigating about sex and age range; ii) Section B investigating about the use of masks (questions 1–2, 4–8), knowledge of mask types (question 3), the reuse of masks (question 9), the disinfection of masks (question 10), the disposal of masks (question 11) and patients’ opinion on the utility of masks use in prevent COVID-19 infection (question 12)
FFP filtering facepiece respirators