I don't know why it's so hard to understand that breathing particulate matter into your lungs isn't a good thing... A child should be able to understand this. My 10 and 12 year old INSTINCTIVELY understood this... they pulled their shirts up over their nose on their own when we woke up and went outside on the first bad day.
I don't know why it's so hard to understand that breathing particulate matter into your lungs isn't a good thing... A child should be able to understand this. My 10 and 12 year old INSTINCTIVELY understood this... they pulled their shirts up over their nose on their own when we woke up and went outside on the first bad day.