Customers most agreed on the following attributes:
Comments about D-Mark, Inc. 20 X 25 X 4 OdorGuard Carbon Pleated Filter:
I have an Amana AMV8 furnace. Anything over 4 inches thick won't fit. This fits perfectly and removes odors very well. The charcoal added to the filter fibers work well -- removes odors even after frying fish! I would strongly recommend this filter. MERV 7 allows air to flow freely through air ducts making my furnace blower more energy efficient. I wanted to order more, but item disappeared from iaqsource website.
Comments about D-Mark, Inc. 20 X 25 X 4 OdorGuard Carbon Pleated Filter:
This filter works well in removing odors. Even after my wife fry's fish. I would certainly buy this product again. MERV 7 provides more airflow to air ducts and filters out most particles.
Comments about D-Mark, Inc. 20 X 25 X 4 OdorGuard Carbon Pleated Filter:
Cooking odors and everday odors are gone. The house never smelled better.