The GeneralAire 4500 accepts the following filter media replacements:
The GeneralAire MAC2000 Mega-Mac Air Cleaner is a MAC series air cleaner that reduces small microscopic particulates in order to improve your indoor air quality and to freshen air. Featuring a MERV 10 Opti-Fiber media and 2000 cfm rated airflow, the MAC Series 2000 air cleaner is 61.8% minimum average efficiency 1.0 to 3.0 microns.
With the GeneralAire MAC2000 air cleaner you will be experience fresher air and be able to breathe easier with reduce contaminants flowing through your air. The GeneralAire high efficiency Opti-Fiber media are constructed out of spun bonded fibers that do not have built in chemical binders, and also do not absorb any moisture.
GeneralAire MAC2000 Mega-Mac Air Cleaner specifications: