Originally Posted by
AndyPatterson
Unfortunately, this toddler was just over 2 years old, so was not "<2" ... That said, I would make it <3 at least....
The reason for 2 is based on the CDC's minimum age to wear a face covering. Below 2, children's lungs may not be able to consume or expel enough air to make a mask safe - similarly, with less powerful lungs they are less likely to spread anything.