Flip over the container, and find the small print. I was a pre-school teacher and we always were combating the flu, H1N1, stomach viruses, etc. So I checked out the Clorox vs. the store brand (at WalMart). It's not just about the ingredients, but the strength of them. Turns out, the Clorox brand kills more viruses than the WalMart brand...it lists on the back what they are effective against. It's all I used in my classroom!