Anti-microbial tray liner?

So, my tray table on US Air has this hideous ad. Some questions:

1. Was my flight cheaper because of this?
2. Who sells this for them – the in flight magazine?
3. What is an anti-microbial tray liner? It was the most interesting part of the ad, but no mention of any details.
4. Why remind me of all the germs floating around this super-dry and now super-infected air?
5. Who thought this was a good idea?

Sincerely,

Annoyed in 21A

Posted via email from Sean Womack’s Stream