The Filtrete Healthy Living 1900 filter has an MPR (microparticle performance rating) of 1900, MERV rating of 12, and an efficiency level of 93%. If you're looking for premium high performance removing tiny particles and odors from your air.

1900 MPR has a rating of MERV 13. 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.

Filter media is a mix of fiber and air, and it's often pleated. In fact, Filtrete™ Filter media is less than 15 percent fiber; the rest is air. This very low density allows air to easily flow through the media.

Filtrete Healthy Living Ultimate Allergen Reduction Filter, MPR 1900 filters are better quality filters that offer a good balance between filtering small particles and not restricting airflow. On my system, MPR 1900 seems to be the filtration limit before I notice my system having to work harder.

The pressure drop for this filter tested at 1025 CFM is a 0.19.

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. Now that you have found your filter, find it at a location near you and sign up for reminders to change it on time.

MERV Rating 11 MPR 1900 is equal to MERV Rating 11. MPR 2200 is equal to MERV Rating 13.

Say Hello to Cleaner, Fresher Indoor Air - 24/7 The included True HEPA filter captures 99.97% of airborne particles**, such as allergens, dust, lint, mold spores, bacteria, viruses and pet dander. Plus, every filter is electrostatically engineered to pull in and trap microscopic airborne particles.

The Filtrete™ Smart Air Purifier is designed to improve your indoor air quality by helping to capture particles in your home. The Smart Air Purifier uses a laser-based air quality sensor to detect microscopic particles in your air and can automatically adjust the fan speed when poor air quality is detected.

All filters will restrict the air flow to some extent because, in every case, the air has to move through the filter for the unit to be able to remove the particles in the atmosphere. The higher the MERV rating, the denser the filter is going to be, and so the more restricted air flow will become.

MERV Rating 11 MPR 1900 is equal to MERV Rating 11. MPR 2200 is equal to MERV Rating 13.

Stay away from the 3M Filtrete filters. They are too restrictive for the average system. A media filter is better. More surface area and less restrictive to airflow.

Better home air filtration: MPR 800 to 1200D This level is the better option if you want to capture lint, household dust, dust mite debris, mold spores, pollen and pet dander.