About Air Filter Efficiency Ratings
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HEPA Box Air Filters
![](/prerenderstable/mvPRE/contents/gfx/imagecache/561/5612t8p1-h01c-digital@halfx_636850622569296103.png?ver=imagenotfound)
Control dust and contaminants in hospitals, laboratories, and other demanding environments. These filters have a rigid frame that withstands fluctuations in airflow, such as those created by variable air volume systems. The sealing gasket is on the downstream side of the filter.
The trade size is the actual size of the filter.
UL Classified-rated filters meet flame retardance requirements.
For technical drawings and 3-D models, click on a part number.
HVAC Filter Trade Size | Filter Efficiency @ 0.3 Microns | Removes Particle Size Down To, microns | Material | Specifications Met | Each | |
Particleboard Frame | ||||||
---|---|---|---|---|---|---|
3" Thick | ||||||
12 × 12 | 99.97% | 0.3 | Fiberglass | __ | 0000000 | 0000000 |
12 × 24 | 99.97% | 0.3 | Fiberglass | __ | 0000000 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | __ | 0000000 | 000000 |
24 × 36 | 99.97% | 0.3 | Fiberglass | __ | 0000000 | 000000 |
5 3/4" Thick | ||||||
8 × 8 | 99.97% | 0.3 | Fiberglass | UL Classified | 0000000 | 000000 |
12 × 12 | 99.97% | 0.3 | Fiberglass | UL Classified | 0000000 | 000000 |
12 × 24 | 99.97% | 0.3 | Fiberglass | UL Classified | 0000000 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL Classified | 0000000 | 000000 |
11 1/2" Thick | ||||||
12 × 24 | 99.97% | 0.3 | Fiberglass | UL Classified | 0000000 | 000000 |
23 3/8 × 23 3/8 | 99.97% | 0.3 | Fiberglass | UL Classified | 0000000 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL Classified | 0000000 | 000000 |
24 × 30 | 99.97% | 0.3 | Fiberglass | UL Classified | 0000000 | 000000 |
Aluminum Frame | ||||||
2 3/4" Thick | ||||||
12 × 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 000000 | 000000 |
24 x 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 000000 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL 900 | 000000 | 000000 |
Galvanized Steel Frame | ||||||
5 7/8" Thick | ||||||
8 × 8 | 99.97% | 0.3 | Fiberglass | UL 900 | 000000 | 000000 |
12 × 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 000000 | 000000 |
24 x 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 000000 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL 900 | 000000 | 000000 |
11 1/2" Thick | ||||||
23 3/8 × 23 3/8 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
24 x 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 000000 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
24 × 30 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
Stainless Steel Frame | ||||||
2 3/4" Thick | ||||||
12 × 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
24 x 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
5 7/8" Thick | ||||||
8 × 8 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
12 × 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
24 x 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 00000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
11 1/2" Thick | ||||||
24 x 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 00000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 00000000 |
24 × 30 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 00000000 |
Box Air Filters
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8231t16p1-h01c-digital@halfx_636955007114776053.png?ver=imagenotfound)
The rigid frame on these filters withstands fluctuations in airflow, such as those created by variable air volume systems.
MERV 11 filters capture common allergens, such as dander, mold spore, and pollen, so they are often used in data centers and other locations that require extra-clean air. They strike a good balance between filtration efficiency and airflow.
MERV 14 filters provide a higher level of filtration than MERV 11 filters and are more effective at capturing finer allergens and viruses for an enhanced level of protection. These filters are often used in environments to protect against airborne contaminants from wildfire smoke and in regions with high pollution levels.
Filters meet UL 900 flame retardance requirements. Actual size is up to 5/8" less than trade size.
For technical drawings and 3-D models, click on a part number.
Filter Efficiency @ | ||||||||
---|---|---|---|---|---|---|---|---|
HVAC Filter Trade Size | 0.3 Microns | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Frame Material | Max. Temperature, °F | Each | |
MERV 11 | ||||||||
6" Thick Fiberglass | ||||||||
12 × 24 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 0000000 |
20 × 24 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
12" Thick Fiberglass | ||||||||
12 × 24 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
20 × 24 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
12" Thick Aluminized Fiberglass | ||||||||
12 × 24 | 20% | 65% | 85% | 1 | Aluminized Steel | 900° | 0000000 | 000000 |
24 × 24 | 20% | 65% | 85% | 1 | Aluminized Steel | 900° | 0000000 | 000000 |
MERV 14 | ||||||||
6" Thick Fiberglass | ||||||||
12 × 24 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
20 × 24 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
12" Thick Fiberglass | ||||||||
12 × 24 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
20 × 24 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
12" Thick Aluminized Fiberglass | ||||||||
12 × 24 | 75% | 90% | 95% | 0.3 | Aluminized Steel | 900° | 0000000 | 000000 |
24 × 24 | 75% | 90% | 95% | 0.3 | Aluminized Steel | 900° | 0000000 | 000000 |
Long-Life Box Air Filters
![](/prerenderstable/mvPRE/contents/gfx/imagecache/172/1729t12p1-h01c-digital@halfx_636850624295730973.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/172/1729t47-pr@halfx_xner5_1716318891.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/172/1729t18p1-h01c-digital@halfx_636850624629012961.png?ver=imagenotfound)
Multiple panels maximize filtering surface area for long service life. These MERV 14 air filters capture particles down to 0.3 microns. They have a V-shape design and a rigid frame that withstands fluctuations in airflow, such as those created by variable air volume systems. The more filter panels they have, the more filtering surface they have for a longer service life.
Actual size is up to 5/8" less than trade size.
For technical drawings and 3-D models, click on a part number.
Filter Efficiency @ | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
HVAC Filter Trade Size | MERV Filter Rating | 0.3 Microns | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Material | Frame Material | Max. Temp., °F | Each | |
4 Panels | ||||||||||
12" Thick | ||||||||||
12 × 24 | 14 | 75% | 90% | 95% | 0.3 | Fiberglass | Plastic | 180° | 0000000 | 0000000 |
20 × 24 | 14 | 75% | 90% | 95% | 0.3 | Fiberglass | Plastic | 180° | 0000000 | 000000 |
24 × 24 | 14 | 75% | 90% | 95% | 0.3 | Fiberglass | Plastic | 180° | 0000000 | 000000 |
6 Panels | ||||||||||
12" Thick | ||||||||||
20 × 20 | 14 | 75% | 90% | 95% | 0.3 | Fiberglass | Plastic | 180° | 0000000 | 000000 |
8 Panels | ||||||||||
12" Thick | ||||||||||
12 × 24 | 14 | 75% | 90% | 95% | 0.3 | Fiberglass | Plastic | 180° | 0000000 | 000000 |
20 × 24 | 14 | 75% | 90% | 95% | 0.3 | Fiberglass | Plastic | 180° | 0000000 | 000000 |
24 × 24 | 14 | 75% | 90% | 95% | 0.3 | Fiberglass | Plastic | 180° | 0000000 | 000000 |
ULPA Box Air Filters
![](/prerenderstable/mvPRE/contents/gfx/imagecache/554/5543n14_0216659d-16b9-421d-9d6f-9f5566c1758d@halfx_1711740190.png?ver=imagenotfound)
Purify the air in your most sensitive environments. These filters remove 99.999% of dust and other particles, so they're best in areas where high air purity matters, such as semiconductor, pharmaceutical, and aerospace facilities. Constructed with fibers more densely woven than a HEPA filter, they catch 10 times more particles. However, they need to be changed more often than HEPA filters because they collect contaminants more quickly. All are UL rated for flame retardance.
For technical drawings and 3-D models, click on a part number.
Filter Efficiency @ | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
HVAC Filter Trade Size | MERV Filter Rating | 0.3 Microns | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Material | Frame Material | Max. Temp., °F | Each | |
11 1/2" Thick | ||||||||||
12 × 12 | 20 | 99.999% | 100% | 100% | 0.3 | Fiberglass | Galvanized Steel | 180° | 0000000 | 0000000 |
24 × 12 | 20 | 99.999% | 100% | 100% | 0.3 | Fiberglass | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 18 | 20 | 99.999% | 100% | 100% | 0.3 | Fiberglass | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 20 | 99.999% | 100% | 100% | 0.3 | Fiberglass | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 30 | 20 | 99.999% | 100% | 100% | 0.3 | Fiberglass | Galvanized Steel | 180° | 0000000 | 000000 |
Odor-Removal Box Air Filters
![](/prerenderstable/mvPRE/contents/gfx/imagecache/545/5451n13-t@halfx_s1ti4_1714742431.png?ver=imagenotfound)
Carbon granules in these filters remove odors from the air. The rigid frame won’t bend or twist from sudden changes in airflow, such as those created by variable air volume systems. For a long service life, the V-shape design increases the filtering area and reduces resistance to air.
MERV 8 filters trap dust in common areas such as warehouses and offices.
MERV 15 filters capture fine particles such as bacteria and smoke in labs and other settings where it’s important to keep air pure.
For technical drawings and 3-D models, click on a part number.
Filter Efficiency @ | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
HVAC Filter Trade Size | 0.3 Microns | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Carbon Concentration, g/sq. ft. | Material | Frame Material | Max. Temperature, °F | Each | |
MERV 8 | ||||||||||
12" Thick | ||||||||||
12 × 24 | 3.4% | 19% | 70% | 0.3 | 46 | Carbon-Filled Polyester Plastic | Plastic | 130° | 0000000 | 000000000 |
24 × 24 | 3.4% | 19% | 70% | 0.3 | 46 | Carbon-Filled Polyester Plastic | Plastic | 130° | 0000000 | 00000000 |
MERV 15 | ||||||||||
12" Thick | ||||||||||
12 × 24 | 78% | 95% | 99% | 0.3 | 46 | Carbon-Filled Polyester Plastic | Plastic | 130° | 0000000 | 00000000 |
24 × 24 | 78% | 95% | 99% | 0.3 | 46 | Carbon-Filled Polyester Plastic | Plastic | 130° | 0000000 | 00000000 |
HEPA Long-Life Box Air Filters
![](/prerenderstable/mvPRE/contents/gfx/imagecache/543/5435n11-tax@halfx_hgmx5_1714761863.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/543/5435n14-tax@halfx_x2uf0_1714761874.png?ver=imagenotfound)
Extend the time between filter changes in laboratories, hospitals, and other places with a high risk of airborne contaminants. These filters have tight pleats, which increase the surface area for catching particles. They’re a HEPA filter, so they capture small particles, such as allergens and germs, more efficiently than standard air filters.
Filters with an aluminum frame have a V-shape design that increases the filtering area and reduces resistance to air, leading to an even longer life than filters with a standard design.
For technical drawings and 3-D models, click on a part number.
Filter Efficiency @ | |||||||||
---|---|---|---|---|---|---|---|---|---|
HVAC Filter Trade Size | MERV Filter Rating | 0.3 Microns | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Material | Max. Temp., °F | Each | |
Aluminum Frame | |||||||||
11 1/2" Thick | |||||||||
24 × 12 | 16 | 99.97% | 99.97% | 99.97% | 0.3 | Fiberglass | 180° | 0000000 | 0000000 |
24 × 24 | 16 | 99.97% | 99.97% | 99.97% | 0.3 | Fiberglass | 180° | 0000000 | 000000 |
Steel Frame | |||||||||
11 1/2" Thick | |||||||||
24 × 12 | 16 | 99.97% | 99.97% | 99.97% | 0.3 | Fiberglass | 160° | 0000000 | 000000 |
24 × 24 | 16 | 99.97% | 99.97% | 99.97% | 0.3 | Fiberglass | 160° | 0000000 | 000000 |