Nordic Pure 18x24x1 Pleated Air Filters MERV 7 Plus Carbon - 12 Pack

Our review of the Nordic Pure 18x24x1 MERV 7 Plus Carbon filters finds them best suited for homeowners who want a balance of dust capture, odor reduction and airflow in central HVAC systems. The single biggest reason to consider these filters is the combination of pleated electrostatic media and an activated carbon layer that helps reduce common household odors while preserving good air flow. The pack of 12 offers convenience for scheduled changes, and the review highlights the need to check the actual filter measurements before purchase to ensure a proper fit.

Key Features

• Dual material construction: A MERV rated pleated layer fused with an activated carbon layer captures particulate and helps reduce odors in living spaces.
• Actual size clarity: The filters list an actual size of 17 1/2 x 23 1/2 x 3/4 in so buyers can compare to their return grille for a correct fit.
• Electrostatic charge: Permanently charged media helps attract and hold dust and other airborne particles without overly restricting airflow.
• Sturdy frame and support: A moisture resistant beverage board frame and bonded metal mesh provide durability and keep pleats stable in typical HVAC conditions.
• MERV 7 performance: Equivalent to MPR 600, this rating strikes a practical middle ground between filtration and system strain for many residential systems.
• Made in the USA: Domestic manufacture offers consistent quality control and clear sourcing for buyers who prefer locally made products.

Who It's For

These filters suit homeowners with central air or furnace systems who want improved indoor air quality without the airflow penalty of higher MERV rated filters. They are particularly useful where mild odor control is desired, for example in kitchens, pet households or near entryways.

Customers who require capture of very fine particles, medical-grade filtration, or who must meet strict commercial HVAC specifications should look for higher MERV ratings. Also, anyone who cannot confirm the return opening will accept an actual 17 1/2 x 23 1/2 x 3/4 in filter should measure before buying to avoid fit issues.

Pros & Cons

Pros

• Good balance of particulate capture and airflow thanks to the pleated electrostatic media.
• Activated carbon layer helps reduce common household odors and VOCs.
• Durable beverage board frame and metal mesh support keep pleats intact through multiple changes.
• Value pack of 12 is convenient for scheduled maintenance and replacement.

Cons

• Size is listed nominally as 18 x 24 x 1 but actual measures 17 1/2 x 23 1/2 x 3/4 in, and some buyers report fit mismatches.
• Not designed for HEPA-level filtration, so very fine particles may still pass through.

Specifications

Nominal size	18 x 24 x 1 in
Actual size	17 1/2 x 23 1/2 x 3/4 in
MERV rating	MERV 7 (equivalent to MPR 600)
Pack quantity	12 filters
Frame material	Heavy duty moisture resistant beverage board
Additional layer	Activated carbon for odor reduction
Country of manufacture	Made in the USA

Our Verdict

The Nordic Pure 18x24x1 MERV 7 Plus Carbon filters are a sensible, cost-effective choice for residential HVAC systems that need routine dust control plus light odor reduction without sacrificing airflow. Confirm the actual 17 1/2 x 23 1/2 x 3/4 in dimensions before purchasing; for most homeowners this 12 pack delivers reliable performance and good value for seasonal filter replacement.

Frequently Asked Questions

Are these filters washable?
No, the pleated electrostatic and carbon media are not washable; replace per manufacturer guidance when airflow decreases or seasonally.

Will these remove strong chemical odors?
The activated carbon layer helps reduce common household odors and some VOCs, but strong or persistent chemical odors may require specialized filtration or ventilation.

Do these fit an 18 x 24 x 1 opening?
Nominally yes, but the actual filter measures 17 1/2 x 23 1/2 x 3/4 in, so measure the return opening to ensure a proper fit before ordering.