Nordic Pure 20x24x1 Pleated MERV 12 Air Filters 6 Pack - High

In this review the Nordic Pure 20x24x1 pleated MERV 12 furnace filters are evaluated for homeowners and small offices seeking stronger particulate capture than basic fiberglass filters. The bottom line: these filters deliver higher-efficiency filtration with a dense, electrostatically charged media that helps remove dust, pollen and many airborne particles, making them a solid choice for improving indoor air quality. Practical users should note the difference between nominal and actual dimensions and measure their filter slot before ordering to ensure a proper fit.

Key Features

• Actual Size: The filter lists an actual size of 19 1/2 x 23 7/16 x 3/4 in, so measuring the installed slot ensures the filter will fit without trimming or forced insertion.
• MERV 12 Efficiency: MERV 12 rated synthetic pleated media captures smaller particles than basic filters, helping reduce dust and allergens in indoor air.
• Electrostatically Charged Media: The charge attracts and holds airborne particles more effectively than uncharged media, improving capture rates for fine particulates.
• Durable Frame: The heavy duty, moisture resistant beverage board frame stands up to typical HVAC airflow and resists sagging that can reduce performance.
• Recommended Change Interval: Nordic Pure suggests changing 1 in filters every 30-90 days, which balances filtration performance with operating conditions in homes and small offices.
• Made in the USA: Manufactured domestically, which some buyers prefer for quality control and sourcing clarity.

Who It's For

The Nordic Pure MERV 12 20x24x1 filter is best for homeowners and small commercial spaces that need better filtration than standard 1 in fiberglass filters but do not require hospital-grade filtration. It suits households with allergy sufferers or pets where capturing dust and pollen can noticeably improve comfort.

Those who should look elsewhere include systems that require thicker filters than 1 in depth or installations where the return slot will only accept the nominal 20 x 24 measurement without clearance; always compare the actual size 19 1/2 x 23 7/16 x 3/4 in to your slot. Very high-efficiency needs (HEPA-level) or specialized environments will need different filter classes.

Pros & Cons

Pros

• Higher-efficiency MERV 12 media removes a wide range of household particulates compared with basic filters.
• Electrostatically charged synthetic media improves capture of fine particles like pollen and dust.
• Sturdy, moisture-resistant frame reduces risk of sagging and maintains airflow performance.
• Made in the USA for buyers who prefer domestic manufacture.

Cons

• Actual dimensions are smaller than the nominal size, so some customers report fit issues if they do not measure the slot first.

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	MERV rated synthetic poly blend pleated media
MERV Rating	MERV 12
Frame	Heavy duty moisture resistant beverage board
Made	Made in the USA

Our Verdict

The Nordic Pure 20x24x1 MERV 12 6 pack is a practical, cost-effective upgrade for anyone wanting better particulate removal in a standard 1 in HVAC slot. It offers solid build quality, electrostatically charged media and clear maintenance guidance, making it good value for homes and small offices where improved air quality matters; just confirm the actual 19 1/2 x 23 7/16 x 3/4 in dimensions before purchasing.

Frequently Asked Questions

How often should I change these filters?
Nordic Pure recommends changing 1 in filters every 30-90 days depending on household conditions and use.

Will a MERV 12 filter restrict airflow?
MERV 12 is denser than basic filters and can slightly increase resistance in some systems; check your HVAC manufacturer's guidance if you have a sensitive system.

Do these filters control mold and bacteria growth?
The media is treated so it will not promote growth of bacteria or mold on the filter, but control of airborne microbes may require higher level filtration or additional HVAC solutions.