The air filter rating ranges from 1-20 in the standard MERV chart. A low ranking filter is rated 1-4 MERV, and medium filter falls into the 5-13 MERV range, and high-efficicency filter will range from 13 to 16 MERV. Filters that are MERV 16 through 20 are usually only found in hospitals, cleanrooms, and nuclear power plants. It does not have a Clean Air Delivery Rate (CADR) which is the standard for measuring the effectiveness of air cleaners. of Energy). HEPA (High-Efficiency Particulate Air) filters enjoy a generally positive view with consumers. 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). The MERV rating scale goes from MERV-1 to MERV-16, with MERV-16 providing the best filtration on the MERV scale. 13 89-90% >98% Proplet Nuceli (Sneeze) Superior Commercial Buildings Box Filter- Rigid Style Cartridge Filters 6 to 12" deep m ay use lofted or paper media. What Is A HEPA Filter? Although, they are an expensive filter. MERV ratings will range from 1 (low efficiency; minimum filtration) to 20 (highest efficiency; highest filtration). HEPA vs High Efficiency Air Filters: As a quick side-note to summarize these filters, there are many people throughout the industry that call these higher MERV filters “HEPA” filters – and they are not. The cost of operation is important in the HEPA vs Electrostatic comparison Some filters have a static electrical charge applied to the media to increase particle removal. HEPA Filter. This is pushing the use of higher efficiency filters in many buildings. For most household uses, the highest MERV rating used will be MERV 13 filters. 12 70-75% >95% 1.0-3.0 pm Particle Size Superior Residential Bag Filter- Nonsupported Legionella microfine fiberglass or 11 60-65% >95% Humidifier Dust Better Commercial Buildings —Preceding unsigned comment added by 131.204.140.40 20:37, 19 June 2009 (UTC) To provide perspective for size, human hair is approximately 80-100 microns in diameter. So you need to know if your system can handle it. A possible explaination is that the number is refering to the filter's MERV rating. One typically does not put a high MERV filter before a low MERV filter because the majority of the particulate would be filtered out by the expensive filter, and not the cheaper filter. In general, manufacturers of HEPA filters market their products to allergy and asthma patients. High efficiency particulate air (HEPA) filters are more efficient than MERV 16 filters. In short, our MERV 13 filter is the only one that has been tested to effectively filter out particles smaller than one micron. Higher MERV ratings (from 13 to 16) are needed to remove bacteria and smoke particles. Further testing needs to be done with higher MERV ratings and over longer periods of … Brand A – MERV rating of 13 may be able to remove pet dander whereas Brand B – MERV rating of 13 may not be able to. It is the standard that all air filters are rated through their process and effectiveness. A HEPA boosts a MERV 17 ranking. MERV stands for Minimum Efficiency Reporting Values, or MERVs, report a filter’s ability to capture larger particles between 0.3 and 10 microns (µm). These filters can be beneficial for allergy and asthma sufferers and those who are vulnerable to infections because they trap very small particles like mold spores, pollen and bacteria. (For reference, the average strand of hair is around 40 microns.) You’ll see that HEPA air filters are usually rated from 15-20 on the MERV scale. MERV rated filters are typically used in air conditioning systems, including systems found in most homes. For reference, a typical dust particle is between .2 and 8 microns, while pollen starts at … The HEPA filters would have the cost of $500 per year the time required to clean the electrostatic cells would be about 12 hours. MERV 13 air filters offer the ultimate in air protection for any domestic residence. A MERV rating is to ensure that the incoming ventilated air meets area specific air quality standards. Electrostatic Filters vs High-Efficiency Pleated Filters - If your furnace is capable of using a high-efficiency pleated filter, these are an excellent choice. For instance, in order for a filter to obtain a MERV-13 rating, the filter must be able to capture at least 50% of E1 particles, 85% of E2 particles, and 90% of E3 particles. If you want it to filter even VOCs (volatile organic compounds), your filter needs a rating of 13-17. The question to be asked is can you clean your electrostatic cells for less than $500? True HEPA filters with a MERV between 17 and 19 are can handle between 99.97 percent and 99.99 percent in removing 0.3 ìm particles, with a MERV of 20 being rated for 0.1 to 0.2 ìm particles. High-efficiency particulate air (HEPA), also known as high-efficiency particulate absorbing and high-efficiency particulate arrestance, is an efficiency standard of air filter.. Filters meeting the HEPA standard must satisfy certain levels of efficiency. What is the H13 HEPA Filter? Generally, a MERV rating of 5-8 can remove dust mites, pollen and other allergens. MPR (Microparticle Rating) is a rating system that includes microscopic particles not visible to the naked eye. Minimum Efficiency Reporting Value – MERV. 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