HEPA is a type of pleated mechanical air filter. The smaller the microparticle, the more difficult it is to capture and the longer it stays in the air (or our lungs). Higher "MERV" means higher filter efficiency. MPR Rating , or Microparticle Performance Rating, was developed by a large manufacturer to grade their air filters based on the ability to filter air particles smaller than 1 micron. MPR vs MERV; Don’t let smells get you down. 1. MPR ratings (ranging from 300-1900) also gauge the size of the particles they will remove from the air, but only from 0.3-1 micron in size. The higher the rating, the smaller the particles the filter catches. This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm). MERV 6 = ~MPR 300; MERV 8 = ~MPR 600; MERV 11 = ~MPR 1000-1200; MERV 13+ = ~MPR 1500-1900+ The Filter Performance Rating, developed by Home Depot for brands sold through their store including Honeywell and Holmes brands. The MERV rating on an air filter describes its efficiency as a means of reducing the level of 0.3 to 10 micron-sized particles in air which passes through the filter. MERV 15 pleated air filters capture most airborne particulates such as lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, viruses, coughs and sneeze, smog and other contaminants. MPR: Micro Any air filter you purchase will have a grade on it as a tool to show its quality. Difference Between Ratings For Furnace Filters – MERV vs. MPR vs. FPR. Hey, it’s going to be okay. The higher the MPR, the more microparticles—such as pollen, pet dander, smoke, bacteria and viruses—your filter will capture from the air passing through it. 3M filters focus strictly on the latter—the submicron particles, and they use a rating system called MPR. Catch More: MERV 11 - blocks particles = 1.0–3.0 μm (1900 MPR, FPR= 9/Purple) Catch All* : MERV 13 - blocks particles = 0.3–1.0 μm (2200 MPR, FPR= 10/Black) * When we say "Catch All", we mean it collects all the particles you could worry about in an average household while still … Notice I said most. The Microparticle Performance Rating or MPR is a rating scale created by Filtrete under the 3M company and it rates the filter’s ability to capture the smallest of airborne particles from the air (different companies use different scales). So, if you have pets, kids, or people with allergies in your home, this is a great combo of air quality improvement and value. The MPR system of ratings was created by and is only used by 3M. MERV Rating is the established air filter industry rating system, but, some companies have developed their own rating systems, based on the ASHRAE MERV Rating. My recommendation is to buy filters with a MERV rating whenever possible. The MPR-2800 would qualify as a MERV-14, so even though 3M emphasizes the smallest size range of particles, their best filter doesn't qualify for the highest MERV rating. MERV vs MPR vs FPR . ... MERV vs. MPR rating. Different companies have different rating systems. Stepping up to a MERV 12/MPR 1200 filter is a good idea when air quality is important. Of the two MERV 8 Flanders filters tested, the 2-inch Pre-pleat performed marginally better than the 1-inch NaturalAire. Most pet dander, bacteria, allergens, and mold will be trapped by this level of filter. of Energy). MPR ratings range from 300 MPR — 2800 MBR. It is an acronym for "high efficiency particulate air [filter]" (as officially defined by the U.S. Dept. 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