[boothby]

Note that pm2.5 will also spike when you've used shampoo, perfume, deoderant, lotion, sunblock; if you use dryer sheets and you unpack your clothes, etc.

[paradox460]

Farts will cause it to spike

[winrid]

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

[mrb]

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?

[billyjmc]

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