Nordic Pure 20x24x1 Pleated Air Filters MERV 13 Plus Carbon - 12 Pack

In this review the Nordic Pure 20x24x1 Pleated Air Filters MERV 13 Plus Carbon 12 pack is evaluated for homeowners and allergy sufferers who want higher filtration and odor control without sacrificing airflow. The single biggest reason to buy is the combination of a MERV 13 synthetic pleated media with an added activated charcoal panel, which captures fine particulates while reducing common household odors. The review focuses on fit, filtration performance, construction, and practical replacement cadence to help decide if these 1in filters match a specific furnace or HVAC slot.

Key Features

• Actual and nominal sizing: The filters list a nominal size of 20 x 24 x 1 but provide the exact actual dimensions so shoppers can measure their slot and ensure a proper fit.
• MERV 13 pleated media: The electrostatically charged synthetic poly blend attracts and traps a wide range of airborne particulates for improved indoor air quality.
• Activated carbon panel: A flat panel infused with activated charcoal reduces odors and captures odorous gases and volatile organic compounds that ordinary filters may miss.
• Support and durability: Each filter uses a heavy duty, moisture resistant beverage board frame with a bonded metal mesh grid to keep pleats stable under airflow.
• Maintenance guidance: Nordic Pure recommends changing these 1in filters every 30-90 days depending on household conditions, providing a clear replacement window.
• Made in the USA: Manufactured domestically, which can be important to buyers who prefer locally produced HVAC supplies.

Who It's For

The Nordic Pure MERV 13 Plus Carbon filters are best for homeowners, renters, and small offices where residents want improved air quality and odor reduction without moving to thicker filter sizes. They suit furnaces and HVAC systems that accept 1in filters and where allergy management or smoke/odor capture is a priority.

Those who should look elsewhere include anyone whose system requires a precise factory-recommended filter thickness other than 1in, or users who need extremely long service intervals; the 30-90 day recommended change window means these are not a low-maintenance, year-long solution for every situation.

Pros & Cons

Pros

• High-efficiency MERV 13 media traps fine dust, pollen, and many allergens effectively.
• Activated charcoal panel provides measurable reduction of household odors and VOCs.
• Sturdy beverage board frame and metal mesh support offer durable construction that resists sagging.
• Made in the USA, offering consistent manufacturing standards and quality control.

Cons

• Actual dimensions are slightly smaller than nominal size, so precise measurement of the existing filter slot is required to avoid fit issues.
• As 1in filters they require relatively frequent replacement compared with higher-depth options if longevity is the priority.

Specifications

Brand	Nordic Pure
Nominal Size	20 x 24 x 1 in
Actual Size	19 1/2 x 23 7/16 x 3/4 in
Filter Media	Electrostatically charged synthetic poly blend
Additional Feature	Flat panel with activated charcoal for odor control
Recommended Change Interval	Every 30-90 days
Country of Manufacture	Made in the USA

Our Verdict

The Nordic Pure 20x24x1 MERV 13 Plus Carbon 12 pack is a practical choice for people who need effective particulate filtration and odor control in systems that accept 1in filters. It balances high-efficiency media with an odor-absorbing carbon layer and solid construction, making it good value for homes where air quality matters, provided buyers verify actual dimensions before purchasing.

Frequently Asked Questions

Will these filters fit my 20 x 24 x 1 slot?
Measure your existing filter slot and compare to the actual size listed; the filters are nominally 20 x 24 x 1 but the actual dimensions are 19 1/2 x 23 7/16 x 3/4 in.

How often should I change these filters?
Nordic Pure recommends changing 1in filters every 30-90 days, with the interval depending on household dust, pets, and usage.

Do these filters reduce odors?
Yes, the added activated charcoal flat panel attracts odorous gases and vapors to help reduce common household smells while maintaining airflow.