So my HP09 is incredibly sensitive (a good thing) to all sorts of smells and chemicals. But the other day I was using a liquid that helps removes stickers and smelt like thick paint thinner. And absolutely nothing with my HP09. 
 

 I can spay a small amount of isopropyl in another room and its fans go into overdrive in seconds, for example. Or body spray is another thing. But this stuff…. Nada.