- What does MERV 12 and MPR 1500 mean?
- MERV 12 is the industry rating for fine-particle capture, and MPR 1500 is 3M's own performance number for the same filter. Both put it above basic dust filters but below hospital-grade MERV 13 and up.
- Will this filter fit my furnace?
- It is a nominal 16 x 20 x 1 inch filter, so it fits slots built for that size. Actual dimensions can run slightly under the nominal figure, which is normal for panel filters.
- How often should I change it?
- 3M rates it for up to 3 months. Check monthly in dusty homes or with pets, and replace sooner if the surface looks gray and matted.
- Is it good for allergies?
- It captures pollen, mold spores, pet dander and most smoke particles, which helps many allergy sufferers. For severe asthma or smoke sensitivity, a MERV 13 filter or a standalone HEPA purifier does more.
- How does it compare with the Filtrete 1900?
- The 1900 has a higher MERV 13 rating and catches more fine particles, but it restricts airflow more. The 1500 is the safer pick for average blowers.
- What is in the box?
- Two 16 x 20 x 1 inch pleated filters.
- Where is the 3M Filtrete 16 x 20 x 1 HVAC Furnace Air Filter MPR 1500 MERV 12 Allergen Bacteria and Virus 2 Filters cheapest?
- At Target, for $29.99, as of our latest check.
- Where can I buy the 3M Filtrete 16 x 20 x 1 HVAC Furnace Air Filter MPR 1500 MERV 12 Allergen Bacteria and Virus 2 Filters?
- 2 stores we checked sell it, including Walmart, Target.