A good air filter is a key component to ensuring clean indoor air in your home or office. With so many different filters on the market, it can be difficult to know which one is right for your needs. One important factor to consider is the MPR, or Microparticle Performance Rating, of the filter. In this article, we’ll explore what MPR is and what level of MPR filter you need for cleaner air.
What is MPR?
In short, MPR is a rating system developed by 3M to measure the effectiveness of air filters in capturing microscopic particles. The rating system is based on particle size, with a higher MPR indicating the filter is better at capturing smaller particles.
MPR is similar to other rating systems, such as MERV and HEPA, but there are some differences to keep in mind. MERV, or Minimum Efficiency Reporting Value, is another common rating system that measures a filter’s ability to capture particles in the air. HEPA, or High Efficiency Particulate Air, is a type of filter that must meet certain qualifications to be considered truly HEPA-rated.
How is MPR calculated?
MPR is calculated by measuring the filter’s ability to capture three different sizes of particles: 0.3 to 1.0 microns, 1.0 to 3.0 microns, and 3.0 to 10.0 microns. These sizes are important because they include many common indoor air pollutants, such as dust, pollen, and pet dander.
The MPR rating is based on a scale of 0 to 2800, with higher numbers indicating better filtering performance. At the low end of the scale, a filter with an MPR of 300 is considered good for capturing larger particles, such as dust and lint. At the high end of the scale, a filter with an MPR of 2800 is designed to capture even the smallest particles, such as smoke and bacteria.
What MPR filter do I need?
The right MPR filter for your needs depends on a variety of factors, such as the level of air pollution in your area, your sensitivity to allergens, and the size of your HVAC system. Here are some general guidelines to consider:
For basic filtration needs (MPR 300-600)
If you don’t suffer from allergies or have pets, a filter with an MPR of 300 to 600 is a good choice for basic filtration needs. This type of filter is designed to capture larger particles, such as dust and lint, and can help keep your home or office clean.
For allergy sufferers (MPR 800-1200)
If you suffer from allergies or have pets, a filter with an MPR of 800 to 1200 is recommended. This type of filter is designed to capture smaller particles, such as pollen and pet dander, which are common allergens.
For high air pollution areas (MPR 1500-1900)
If you live in an area with high levels of air pollution, such as near a busy street or industrial area, a filter with an MPR of 1500 to 1900 is recommended. This type of filter is designed to capture smaller particles, such as exhaust fumes and smoke, that are more prevalent in polluted areas.
For severe allergy sufferers (MPR 2200-2800)
If you suffer from severe allergies or have respiratory issues, such as asthma, a filter with an MPR of 2200 to 2800 is recommended. This type of filter is designed to capture even the smallest particles, such as smoke and bacteria, which can aggravate respiratory conditions.
Other factors to consider
While MPR is an important factor to consider when choosing a filter, there are other factors to keep in mind as well. Here are a few to consider:
Filter size
Filters come in various sizes, so it’s important to choose one that fits your HVAC system. A filter that is too small may not provide adequate filtration, while a filter that is too big may not fit in your system at all.
Filter lifespan
Filters also have varying lifespans, which can affect how often you need to replace them. A higher MPR filter may need to be replaced more frequently, as it will capture more particles and become clogged more quickly.
Filter thickness
Filters come in various thicknesses, with thicker filters generally providing better filtration. However, thicker filters may also reduce airflow through your HVAC system, leading to decreased efficiency and increased energy costs.
Conclusion
Choosing the right MPR filter for your needs is an important step in ensuring clean indoor air. While MPR is an important factor to consider, there are other factors to keep in mind as well, such as filter size, lifespan, and thickness. By considering these factors and choosing the right filter for your needs, you can breathe easier and enjoy cleaner air in your home or office.
FAQs
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What does MPR stand for?
MPR stands for Microparticle Performance Rating.
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How is MPR calculated?
MPR is calculated by measuring the filter’s ability to capture three different sizes of particles: 0.3 to 1.0 microns, 1.0 to 3.0 microns, and 3.0 to 10.0 microns.
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What level of MPR is best for allergy sufferers?
For allergy sufferers, a filter with an MPR of 800 to 1200 is recommended.
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What factors should I consider when choosing a filter?
When choosing a filter, consider factors such as the level of air pollution in your area, your sensitivity to allergens, and the size of your HVAC system.
References
- 3M. (n.d.). Microparticle Performance Rating (MPR) – Air Filter Ratings. 3M. https://www.3m.com/3M/en_US/filtrete-us/resources/air-filter-ratings/.
- Create Good Air. (2021, April 28). MERV vs MPR vs FPR-Rating Systems Explained. Create Good Air. https://www.creategoodair.com/blogs/blog/merv-vs-mpr-vs-fpr-rating-systems-explained.