Infants (0-18 months): They are usually available in orange or petrol color, so they can be easily identified by age group.
Children (1-5 years): The yellow mask is the most common choice recommended by pediatricians for children aged 1–5 years. This is the most usual advice you will hear from a pediatrician for the 1–5 years age group.
Teens & Adults (6+ years): They are usually the masks with a green color, either light or dark.