AirPots aren't made of PVC, they're food grade plastic that's BPA-free.
Research PVC, it's pretty foul stuff. Read up on BPA, too.
And SmartPots are poly fabric grow bags.
So, does "poly fabric" mean plastic? If so, does the term "poly" refer to Poly Vinyl Chloride... or PVC? Are your fabric pots actually made of recycled PVC? You'd think they'd just use cotton.
Sorry... I've never touched a smartpot before and have no idea.