Inspired by this, I looked up what was in a little anti-fog spray bottle for eyeglasses I have: https://www.zeiss.com/content/dam/Vision/Vision/International/P

Inspired by this, I looked up what was in a little anti-fog spray bottle for eyeglasses I have: https://www.zeiss.com/content/dam/Vision/Vision/International/Pdf/en/data-sheet-for-zeiss-anti-fog-spray.pdf https://www.zeiss.com/content/dam/Vision/Vision/Internationa... Yep, it’s water plus various non-polymer perfluoro compounds. I get why fluoropolymers are extremely useful (and probably fairly safe for their end users). I get why PFCs are useful in industrial processes. But why on Earth is it acceptable to intentionally use PFCs as the primary ingredients in a spray bottle intended to be used near people’s faces?