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Filter Size: 11.5x21x1A
Actual Size: 11.5x21x1
Actual Size Fraction : 11-1/2x21x1
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Dust, dirt, pet dander, viruses, and bacteria are a few of the contaminants commonly found in a residential or commercial building’s air supply. Breathing in these contaminants over a long period can harm your health. In addition, airborne particles aren’t the only thing you have to worry about when it comes to indoor air quality. Imbalanced humidity levels can also serious health and breathing problems. If you want to be as healthy and comfortable as possible at your home or office, you should install 11.5x21x1 air filters from the Custom Filters Direct.
Replacing your current HVAC filter with 11.5x21x1 air filters is an easy way to enhance indoor air quality. These filters use super tightly woven fibers that help to catch even the smallest contaminants like bacteria and viruses that standard fiberglass filters can’t catch.
Custom Filters Direct 11.5x21x1 furnace & HVAC filters are designed to filter the incoming airflow and block airborne particles that may cause allergies and other breathing issues.
Any filter you buy will come with a MERV rating. MERV stands for Minimum Efficiency Reporting Values. The MERV rating is an industry-standard system for rating the minimum efficiency of air filters. Higher the MERV rating of an air filter, the more particles it can collect.
Custom Filters Direct offers MERV 8, 11, and 13 rating filters. Choose accordingly that fits your family’s lifestyle or your office environment.
MERV 8 air filters capture up to 85% of harmful particles between the size of 3 to 10 microns. These air filters are effective at controlling mold spores, dust, hair spray, and other common household air contaminants. Generally, these air filters are recommended for households with no pets and breathing problems.
MERV 11 air filters capture more than 85% of airborne allergens between the size of 3 to 10 microns and 50% of particles 1 – 3 microns in size. These filters are a perfect choice when your household suffers from mild allergies or you’re living with pets.
MERV 13 air filters are an ideal choice when looking to catch all particles, from larger to smaller. These air filters are capable of blocking more than 90% of 3 – 10 microns size particles and 75% of 0.3 – 1 microns size particles. MERV 13 furnace and HVAC filters provide the highest level of air quality by filtering cooking oil smoke, viruses, bacteria, and more.
11.5x21x1 air filters will help your home and office fight against allergens as long as you maintain them properly. To be safe, we recommend you change your air filters every 2-3 months. With Custom Filters Direct, you can save when buying 11.5x21x1 air filters in bulk. Also, you don’t pay the middleman’s costs. We also offer a monthly subscription service. So, place your order now and make your space smell fresh with clean incoming airflow.