Hacker News Reader

Farts will cause it to spike

It's unfortunate that we can't comment on reviews.

Exactly! So many ways to make PM2.5 spike. I didn't even know about shampoo and sunblock. I assume for sunblock it's the spray kind?

This is news to me, but I’m unsurprised. Why people use so much strongly scented products is absolutely baffling to me.