Filtrete 20x20x1 Air Filter – MERV 11, MPR 1000, Allergens & Pet Dander | 3-Month Filter | Actual Size 19.68 x 19.68 x 0.81 in

Upgrade your air with Filtrete 20x20x1 MERV 11, MPR 1000 filter

From 3M, the Filtrete MPR 1000 air filter is designed to help your household air feel cleaner and fresher. Built with exclusive Filtrete 3-in-1 technology, it combines a MPR 1000 rating and a MERV 11 efficiency to pull in and trap a broad range of particles as air passes through. Expect a balance between strong filtration and steady airflow, all in a convenient 1-inch pleated design.

What makes this filter practical is that it doesn’t just catch the visible stuff. It targets microparticles in the 0.3–1.0 micron range while still letting clean air circulate through your furnace, air conditioner, or HVAC system. Large particles like lint and dust are also captured, contributing to a possibly more comfortable living space without constant filter changes.

Key features at a glance

• 3-in-1 filtration technology that pulls in and traps particles while maintaining airflow
• 1000 MPR and MERV 11 rating for broad particle capture
• Certified asthma and allergy-friendly (2) to address common household irritants
• 1-inch pleated design suitable for most standard filter slots
• Replace at least every 90 days for optimal performance
• Versatile use in furnaces, air conditioners, or any compatible HVAC system
• Smart reminders via the Filtrete app to help you stay on track
• Brand trust backed by a leading HVAC filter manufacturer

Real-life scenarios and practical usage

In homes with pets, you may notice fewer pet-related irritants floating in the air as the filter works to capture dander and dander-associated particles. In urban or smoky environments, you can imagine a reduction in some airborne particles passing through your system. During high pollen seasons, the filter’s capacity helps keep outdoor particles from accumulating indoors, contributing to a fresher-feeling environment.

Maintenance tips: confirm the actual size fits your slot (the filter is designed for a 20x20 inch opening with the actual size 19.68 x 19.68 x 0.81 inches). For best results, schedule a replacement every 90 days and use the Filtrete Smart App to set a countdown by scanning the packaging barcode. You’ll receive a reminder when it’s time to change the filter, helping you stay on top of maintenance without guesswork.

Why choose Filtrete

• Filtrete is North America's most trusted HVAC filter brand, per recent brand health insights
• 3-in-1 filtration approach addresses a range of indoor particles while supporting steady airflow
• Asthma and allergy-friendly certification adds a confidence factor for households seeking reliable filtration