Seasonal transitions—especially winter to spring—can kick up a lot of unwanted air particles in homes and outside. Many of these particles are too small to see.
The good news: you don’t need to work overtime to protect and improve your indoor air quality. Choosing a high-efficiency air filter for your heating and cooling system is a great place to start. If you already use a Filtrete™ Filter, you benefit daily from electrostatic technology—properties that cause the filter to act like a magnet, capturing large and small airborne particles and allergens.
But have you ever noticed the “MPR” label as you’re shopping for new Filtrete™ Filters? Let’s examine this acronym and its relation to filtration level.
MPR stands for Microparticle Performance Rating, and it’s how Filtrete™ Brand reports a filter's ability to pull in and trap tiny particles between 0.3 and 1 micron in size. For reference, an average strand of human hair is about 70 microns in size. That’s nearly 70 times larger than the largest fine particle*.
Keep in mind: the higher the MPR, the more particles your filter can capture. So, if you want to help protect your home from allergens, paying close attention to the MPR on Filtrete™ Filters becomes increasingly important.
If you want a good option for capturing pollen, mold spores and large particles, such as lint and household dust, consider Filtrete™ Clean Living Air Filters with an MPR of at least 600.
Allergen Defense Filters, including Filtrete™ Allergen Reduction + 2x Dust Defense Filters , are capable of capturing even more particles. This level is the better option if you want to capture lint, household dust, dust mite debris, mold spores, pollen and pet dander.
Healthy Living Filters, which include our revolutionary Filtrete™ Smart Filters, are our best solutions for capturing allergens, in addition to dust, bacteria and viruses.