Nordic Pure 20x24x4 Furnace Air Filters MERV 10 Plus Carbon - Odor

In this review the Nordic Pure 20x24x4 pleated furnace air filters are evaluated for homeowners and renters who want better particle capture plus basic odor control. The bottom line: these filters combine a MERV 10 filtration media with an activated carbon layer to trap airborne contaminants and reduce odors, while using a rigid, moisture resistant frame that holds up during seasonal use. Measure your existing filter slot carefully and compare to the actual dimensions provided to ensure a correct fit.

Key Features

• Dual material construction: A MERV rated media fused to an activated carbon layer gives particle reduction and odor adsorption without a big hit to airflow.
• Actual sizing guidance: The listed actual size of 19 3/8 in x 23 3/8 in x 3 5/8 in helps avoid fit problems when compared to nominal measurements.
• Improved surface area: Pleated design increases surface area by about one third, which helps maintain airflow and capture more particles between changes.
• Solid build: Heavy duty beverage board frame and a bonded metal mesh support grid keep pleats supported and durable in HVAC systems.
• Odor control: The activated carbon layer attracts odorous gases and VOCs to reduce common home smells.

Who It's For

This filter is best for households and small businesses seeking better indoor air quality than basic fiberglass filters, especially where odors or VOCs are a concern. It is a practical choice for users who want a balance of filtration and airflow without upgrading to higher MERV levels that can stress some older HVAC systems.

Those who need ultra fine particle capture for severe allergy or medical needs should consider higher MERV options. Also, because customers reported occasional variation versus nominal measurements, anyone unsure about sizing should measure their filter slot before ordering.

Pros & Cons

Pros

• Effective combination of particle filtration and odor adsorption thanks to MERV 10 plus carbon.
• Sturdy beverage board frame and metal mesh give reliable structural integrity in HVAC use.
• Good value for performance, with customers noting solid build quality and filtration effectiveness.

Cons

• Actual measurements differ from nominal size; some customers found fit issues unless the actual 19 3/8 x 23 3/8 x 3 5/8 in dimensions are checked first.

Specifications

Our Verdict

The Nordic Pure 20x24x4 MERV 10 plus carbon filter is a sensible upgrade for most homes that need better particle capture and reduced odors without sacrificing airflow. It delivers durable construction and noticeable odor control at a reasonable price, but buyers must confirm the actual 19 3/8 x 23 3/8 x 3 5/8 in dimensions for a proper fit before purchasing.

Frequently Asked Questions

Will this filter reduce household odors?
Yes. The activated carbon layer is designed to attract and hold odorous gases and some VOCs, improving the smell of circulated air.

Do these filters fit a nominal 20 x 24 x 4 in slot?
These are listed as nominal 20 x 24 x 4 in but the actual dimensions are 19 3/8 x 23 3/8 x 3 5/8 in, so measure your filter slot and compare to the actual size to ensure fit.

Are these filters suitable for allergy sufferers?
They provide good filtration for everyday airborne contaminants at MERV 10, but those needing maximum allergen capture should consider higher MERV rated filters.