Shure you can vaporize H2O2 - there are machines that do that specifically to sterilize environments. But a normal solution of H2O2 does not release any detectible level of vapors. The boiling point of H2O2 is 150 C, quite a lot higher than water. Add to that the fact that strips have low sensitivity and you have a chemical impossibility.

But thanks for confirming that the strips are indeed intended to detect hydrogen peroxide. That confirms to me that this is really security theater. As I stated before, there is no test strip that can detect peroxides by being waved above a flask of a peroxide solution. And I have pretty good knowledge in this particular field.

Coffee is a soup of chemicals. So is tea. The air is full of chemicals, such as nitrogen, oxygen and carbon dioxide. Obviously, these strips are supposed to respond to a particular group of chemicals, which you now confirmed to be peroxides.

I´m waiting on that too.