Size: 22 X 14 cm
Composition: 100% cotton

Reusable and washable face mask made of 3 layers of cotton. Adjust well the mask with the plastic adjusters behind the ears to fit the shape of your face. A metal bar at the nose allows a better adjustment, especially to prevent fogging in glasses. Suitable for school-age children and young adults.
Wash before the first use.
This mask is not medical grade.

Here are the recommendations from Health Canada on wearing a face mask: 

Wash your hands before use.
Start by washing your hands with soap for 20 seconds.

Use the elastics to place mask over nose and mouth, and secure it.
Pick up the mask by the elastics, place it over your nose and mouth, and secure it behind your ears.

Adjust mask if needed.
From there, adjust the mask to ensure your nose and mouth are fully covered, so there are no gaps. Then wash your hands again.

Avoid touching the mask.
While wearing the mask, avoid touching it or touching your face. And wash your hands if you do.

Remove using the elastics.
Once you’re done using the mask, remove it by the elastics without touching the front.

Fold and place inside a clean bag.
Fold the outer parts of the mask together, and place it in a clean bag to wash later. Then wash your hands right away.

Change if moist, dirty or damaged.
Change your mask whenever it becomes moist, dirty or damaged.

Don’t hang from your neck or ears.
Don’t leave the mask hanging from your neck or ears.

Wash your hands after use.
And remember: always wash your hands after using a mask.

Source: Government of Canada, COVID-19: How to wear a non-medical mask or face covering properly, https://www.canada.ca/en/public-health/services/video/covid-19-wear-non-medical-mask-face-covering-properly.html, June 15, 2020