I was beyond halfway of a 3-hour flight when I suddenly started sneezing and getting a runny nose. I recovered overnight. However, on the trip back home, it happened again! This got me looking into how clean cabin air is. Although 40 % of a cabin’s air gets filtered through the high-efficiency particulate air or HEPA system; the remaining 60 percent there are other things that you have to consider before you get duped into believing that the cabin air is really clean.

Click here to read the full details: https://open.substack.com/pub/wchflorida/p/what-you-breathe-in-airplanes?utm_campaign=post&utm_medium=web