Product Review: Filtrete 16x25x1 Air Filter, MPR 1200, Allergen Defense Odor Reduction, 2-Pack

 

These filters are good if you have a newer, higher-efficiency furnace. If your furnace is older (manufactured and/or installed around the year 2000), especially a lower-end model, then chances are it will not provide enough airflow through these to make them worth using. But, once you do have a newer furnace, these are a good option. They are a bit more expensive than the very cheap filters, but they also trap a lot more.