[Zhang Fei]

The same drywall that corroded the brand new electrical wiring in people’s houses? Just imagine if it does that to wires, just what does it do to your lungs.

Moisture corrodes steel and causes dried edibles to rot. Oxygen and sunlight cause rancidity. Imagine what these things will do to your lungs.

[kenth]

Moisture and oxygen, sure. But if you’re getting sunlight on your lungs, you’ve got bigger short term problems.