Yes, Please go to this sight and read what this air system does. Also, read the testimonials. I think this will solve your problem.
www.aircleanersforbirds.com
I have 6 in my house and I love them. very easy upkeep, less dust, and my husband & I no longer wake up with headaches in the am. The air is must less dusty, and smells clean!
If you call the 800 number, you'll learn more with no sales pressure.
Good luck and let us know what you decide to do.
I don't think your grey would be very happy alone in the garage.