Filtrete 21x22x1 AC Furnace Air Filter — MPR 700 (MERV 8), 6-Pack, 3-Month Pleated Electrostatic Filter (Actual Size 20.69 x 21.69 x 0.81 in)

Filtrete 21x22x1 AC Furnace Filter: Smart Filtration for Everyday Air

Upgrade your central air filtration with Filtrete 21x22x1 AC Furnace Filter. This six-pack delivers a three-month pleated filtration solution, powered by an electrostatically charged media that helps attract and trap a wide range of airborne particles as air moves through your heating and cooling system. With an MPR 700 rating and a MERV 8 standard, it aims to balance strong filtration with steady airflow, supporting efficient HVAC operation in homes of all sizes.

What makes this filter stand out

• Captures lint, pollen, dust, and pet dander to reduce common indoor pollutants in everyday spaces.
• Electrostatic charge helps attract particles to the filter media for enhanced filtration without restricting airflow.
• 3-month pleated design supports longer use between changes while maintaining consistent performance.
• Exclusive Filtrete 3-in-1 technology traps particles while letting cleaner air pass through your system.
• MPR 700 rating paired with MERV 8 helps address both larger and finer particles on every pleated filter.

Designed for real-world homes, this filter is engineered to work with your furnace, air conditioner, or HVAC system, helping you maintain a cleaner and more comfortable living environment. The combination of higher particle capture and a balanced airflow means your system can run smoothly while the air circulating through your home remains fresher-seeming and less dusty on busy days.

Usage and maintenance tips

• Change your filter at least every 90 days for optimal HVAC performance and consistent air filtration.
• Use the Filtrete Smart App to scan the filter’s barcode and set a replacement countdown for 30, 60, or 90 days.
• Plan around pollen seasons, high-traffic homes with pets, or years of varying outdoor pollutants to keep filtration on track.

In everyday life, you may notice calmer air during peak pollen periods, fewer sneezes around dusty rooms, and steadier airflow in rooms that tend to feel stuffy. These potential benefits come from a filtration approach that emphasizes both particle capture and sustained airflow, without guaranteeing specific results for every home.