Filtrete 18x36x1 AC Furnace Air Filter MERV 8 - 4-Pack

In this review the Filtrete 18x36x1 AC Furnace Air Filter MPR 700 (MERV 8) is recommended for households that want a straightforward, proven way to reduce common airborne particles. The 4-pack of 3-month pleated filters is best for owners of standard furnaces or HVAC systems who change filters on schedule and want a balance of particle capture and airflow. The single biggest reason to buy is the electrostatically charged pleated media that attracts and traps lint, pollen and pet dander while maintaining acceptable airflow for most systems.

Key Features

• 4-Pack, 3-Month Life: Four 1-in filters provide scheduled replacements for up to a year if changed every 90 days, helping maintain HVAC performance.
• Electrostatic Pleated Media: The charged fibers actively attract and capture particles such as dust, pollen and pet dander for cleaner indoor air with each air cycle.
• MPR 700 / MERV 8 Rating: Rated to capture a range of common household particles while allowing steady airflow through typical furnaces and air handlers.
• Designed for Easy Use: The filters are sized for common 18x36 filter slots and are intended to fit without modification in compatible systems.
• Filtrete 3-in-1 Technology: Layered construction balances particle capture and airflow, outperforming basic non-electrostatic and washable filters.

Who It's For

The Filtrete 18x36x1 is aimed at homeowners and renters who want an affordable, no-frills filter that reduces visible dust, pollen and pet dander and who will replace the filter about every 90 days. It suits typical residential furnaces, central air conditioners and HVAC systems where a 1-in depth filter is specified.

People who need very high-efficiency filtration for severe allergies or medical reasons should look for higher MPR or thicker 4-in/5-in filters with higher MERV ratings; likewise, systems that rely on ultra-high airflow or have nonstandard filter dimensions require a different product.

Pros & Cons

Pros

• Effective at capturing lint, pollen and pet dander thanks to electrostatic pleated media.
• Good value for a 4-pack that supports scheduled changes every 90 days.
• Balances particle capture with airflow better than simple washable or fiberglass filters.

Cons

• Some users report mixed feedback on sturdiness and occasional variation in size fit that may require slight adjustment at the filter slot.

Specifications

Brand	Filtrete
Model Size (actual)	17.81 x 35.81 x 0.65 in
Pack Quantity	4-pack
Depth	1 in
Filter Rating	MPR 700 (MERV 8)
Recommended Change Interval	Every 90 days for 1 in filters

Our Verdict

The Filtrete 18x36x1 MPR 700 is a practical, cost-effective choice for routine home air filtration when you want to reduce dust, pollen and pet dander without sacrificing airflow. For most residential HVAC systems this 4-pack offers predictable performance and value as long as you follow the recommended 90-day replacement schedule.

Frequently Asked Questions

How often should I change this filter?
Change the 1-in filter at least every 90 days; more frequently if you have pets or high dust levels.

Will this filter reduce allergens?
Yes, the electrostatic pleated media helps capture pollen, pet dander and dust that contribute to common allergens.

Is this filter suitable for all furnaces?
It fits standard 18x36x1 slots, but confirm your system accepts 1-in pleated filters and watch for any size fit issues noted by some users.