Filtrete 21x21x1 AC Furnace Air Filter – MPR 700, MERV 8, 6-Pack (Actual Size 20.81 x 20.81 x 0.81 in)

Elevate your home air with Filtrete 21x21x1 AC Furnace Air Filter

In busy households, particles like pollen, dust, lint, and pet dander drift through living spaces and into heating and cooling systems. The Filtrete Dust, Pollen & Pet Dander Air Filter uses an electrostatically charged design to attract and trap more particles as air flows through, helping your indoor air feel fresher after each cycle.

Designed for residential use, this 6-pack delivers three months of pleated filtration per filter, providing a steady supply for ongoing maintenance. With an MPR 700 rating that corresponds to an effective MERV 8 performance, it balances solid filtration with smooth airflow for everyday comfort.

What makes Filtrete stand out

• Electrostatic filtration attracts and captures common irritants like pollen, dust, and pet dander, while preserving airflow.
• 3-in-1 Filtrete technology targets a broad range of particles, including larger debris and microscopic contaminants.
• 6-pack with a 3-month replacement cycle helps you stay stocked without frequent shopping trips.

Key specs and practical details

• Actual size: 20.81 x 20.81 x 0.81 inches, designed to fit standard 21x21x1 slots.
• Recommended replacement cadence: at least every 90 days for optimal performance in HVAC systems.
• Filtrete Smart App support: scan the packaging barcode to enable a 30/60/90 day countdown and reminders.
• Outperforms basic fiberglass, washable, and non-electrostatic filters in its class by attracting more particles per pass.

Real-life use scenarios

Imagine seasonal pollen spikes, a pet-friendly home with shedding, or rooms that gather dust quickly. With Filtrete, filters are designed to help keep circulating air feeling cleaner, while still allowing your HVAC system to run smoothly. The six-pack setup means you can rotate replacements with less effort and time spent shopping.

While results can vary by home, the combination of electrostatic attraction, high-efficiency particle capture, and steady replacement cycles offers a practical way to support everyday indoor air comfort without overhauling your current setup.

Note: This description highlights features and intended benefits based on the provided data. It does not make medical claims, and individual results may vary by environment.