Simply put, the higher the MERV rating on an air filter, the fewer dust particles and contaminants that can pass through it and vice versa.

Ratings range from 1 (the lowest filtration possible) to 20 (the highest filtration possible). You can check your air filter’s effectiveness by reviewing its Minimum Efficiency Reporting Value (MERV) rating. When an air filter is too efficient, it can cause low airflow. Depending on the type of air filter you use and how much your system runs, it is best to clean or replace it every 30-90 days. It is also harder to remove pollutants from your home’s indoor air (contaminants like dust mites, mold, pet dander, dead skin, allergens, viruses and more). Not only does it restrict airflow, but it causes your entire HVAC system to work harder, not as efficiently as possible. If you have an air filter that’s dirty, it can cause low airflow. If you are interested in purchasing or learning more about any of our Indoor Air Quality products, please fill out the form below.Do you have issues with low airflow in your home? There are many possible reasons why this might be happening, and here are five common causes for low airflow and what you can do to fix them. The filter should be changed once or twice a year based on conditions within the home.All cabinet mounting holes are slotted and designed to lineup with original equipment flanges for time-saving installation.Insulated cabinet to reduce the risk of condensation.Heavy duty, 20 gauge, post-forming painted, corrosion-resistant door.Fully gasketed door for proper air seal.Filter frame designed with dual pull tabs for easy removal.Filter has a tight cabinet fit ensuring negligible air bypass.Filter design features a structured density gradient for sustained efficiency over the life of the filter.Magnetic door design ensures tool-less, easy access to filter components for a quick and easy filter change.Designed for multi-position horizontal or vertical installations.Extra deep, 5 ¼” pleated filter constructed of cellulose-free, hydrophobic polyolefin fibers.Pleated media filter removes over 99% of Ragweed, over 72% of Cat Dander, and over 73% of Dust Mites from the airstream, three common allergens that are found in homes*.Pleated media filter removes over 98% of Aspergillus fumigatus, Aspergillus versicolor, and Stachybotrys chartarum from the airstream, three common mold spores that are found in homes*.The new Daikin Premium Air Cleaner is a MERV 15 media filter that removes more than 85% of particles down to 0.3 microns*.Compatible with the 213 Healthy Home Filter, 213CBN Odor Reduction Filter, and 216 Allergy & Asthma Filter.įor Daikin FIT system owners, we can provide you with medical-grade filtration that doesn’t affect your system’s airflow.Versatile installation - compatible with systems located in basements, attics, closets, and more.Easy to maintain - simply change the Air Purifier’s filter once up to every 12 months.Guaranteed with Aprilaire’s Pure Fit Promise: Self Seal™ technology, interlocking rails, and Clean Coil Commitment.Comes with 210 Clean Air Filter, which has more than 9 times the filtration area found in 1” filters.Protects your HVAC system and offers superior filtration performance to 1” filters.ServiceOne’s Improved Filtration Solutions Aprilaire Air Purifier The above chart was pulled from Wikipedia. Though a MERV 7 or 8 might be the perfect balance between performance and cost. If you are looking to improve your indoor air quality and help your family enjoy cleaner and healthier air, you may want to look for a high-efficiency filter that’s MERV 11 or higher.

The extra strain on your system could cause expensive repairs and leave you less comfortable defeating the purpose. Imagine trying to breathe through a straw, that’s what you could be doing to your HVAC system by installing a filter with an excessive MERV rating. A higher MERV rating means higher filtration, however the higher the MERV rating, the less airflow. An air filter’s performance is not just determined by size but also determined by measuring the particle counts upstream and downstream of the tested air-cleaning device and given a Minimum Efficiency Reporting Value (MERV rating). If your HVAC filter is failing to trap common allergens, then it is failing to do its job. Still, filters that enable too much airflow will allow the accumulation of dust and dirt onto the significant components of your HVAC system. Your one-inch furnace filter is affordable and allows plenty of airflow. Your 1” Furnace Filter Might Not Be Enough A good air filter captures the most common allergens like dust, pollen, fungi, mold, and pet dander.

High airflow filters