Replacement Air Filter Sizing: Nominal vs. Actual
Air filters are sold by nominal size, not the size they actually measure. A filter labeled 20x25x1 is closer to 19.5 x 24.5 x 0.75 inches, and that gap is...
Helpful Tips
Replacement Air Filter Sizing: Nominal vs. Actual
-
Are 4-Inch Furnace Filters Better Than 1-Inch Filters? Should You Upgrade?
Thinking about upgrading from a 1-inch to a 4-inch furnace filter? A deeper filter can often hold more dust, last longer, and support better airflow than a thin high-MERV filter...
-
Coping with Wildfire Smoke: Protecting Your Indoor Air Quality
Wildfire smoke particles are small enough to get inside a sealed house through HVAC ductwork, bathroom vents, and micro-gaps around doors. A MERV 13 filter is the EPA's recommended minimum...
-
Use a Box Fan with an Air Filter to Reduce Wildfire Smoke Indoors
Learn how to build a simple DIY box fan air cleaner with a MERV 13 filter to reduce wildfire smoke indoors. Follow EPA-backed tips for safe setup, correct filter placement,...
-
AC Filter Won’t Fit? What to Check Before You Buy Another One
Your AC filter will not fit for a reason. Learn how actual size, filter depth, the correct slot, and a snug fit affect performance before you order another standard or...
-
Con-Air Launches New Line of Clorox MERV 8 Carbon Air Filters for Residential HVAC Systems
Con-Air Industries and The Clorox Company have announced a new line of MERV 8 carbon air filters for residential HVAC systems. The filters combine standard MERV 8 particulate capture with...
-
How to Get Rid of Cat Dander
Cat dander is one of the most common household allergens - and one of the most persistent. This guide covers what it is, how it differs from dandruff, and the...
