One of the most effective and most popular furnace air filters on the market is the Space-Gard whole house high efficiency furnace air filter, also called the AprilAire high efficiency air cleaner. This filter uses a highly efficient filter media that removes dust, dust mites, mold spores, pet dander, pollen, bacteria, viruses, smoke and other contaminants in the home.
The filter is also designed to become more efficient with use. It requires replacement only once per year as opposed to monthly as with most 1" paper or fiberglass filters. With its deep pleated filtration media, it provides 72 square feet of filtering media, 30 times the filtration area of standard 1" filters.
AprilAire Type 201 Replacement Filter
I have one of these units in my home and they work very well. In this tutorial I'll walk you through the way to replace this filter.
