Though you could have already guessed that wasn't an option, given that Tony has already been living in the house with pets even though he has allergies. Anyway, I do agree with Bruno's last statement

I can't possibly say whether it works or not, but we have a purifier from Costco. Sadly, I have no idea what the brand is, but it's this 2.5' tall black thing with some sort of UV light that I'm sure does nothing. Like I said, I have no idea if it does anything, but the air does seem a little better on our second floor where we have it than it did before we got it.