Now that I know about that product, we'll try it. We've been doing this:
1. Do not let cat in the bedroom.
2. Have a small air purifier with a HEPA and carbon filter that runs ALL night long on the low setting and on HIGH for 2 hours before bed.
It seems to work REALLY well. I'm slightly allergic to Mira and Brandon is REALLY allergic. Both of us have noticed an amazing difference. Hopefully that allerpetic will help as well!