Boogers

There is an interesting phenomenon that I have yet to understand. When you get relegated to full-time breathing support, the air you receive is 100% filtered. That means it’s supposed to have had dust and dirt removed. So how is it you still get boogers?! And to add insult to injury, you have to ask someone else to clean your nose. Reminds me of cleaning my daughter’s when they were little. Does this mean I’m reverting to a four-year-old? Oh wait, I never left!