Nordic Pure 20x20x5 MERV 13 Plus Carbon Furnace Filters - Odor Control

In this review the Nordic Pure 20x20x5 (actual 19 5/8 x 19 7/8 x 4 3/8) replacement furnace filters are considered for homeowners who want higher-efficiency particle capture and basic odor reduction in a four-pack. The bottom line: these filters are a practical, value-minded substitute for Honeywell 20x20x4 filters when you need MERV 13 level filtration and some VOC and smell adsorption, but you must measure your filter slot first because the actual size differs from the nominal size printed on the box.

Key Features

• Actual size clarity: The listing gives an explicit actual size of 19 5/8 x 19 7/8 x 4 3/8 in so you can measure your filter slot and confirm fit before installing.
• MERV 13 filtration: Equivalent to MPR 2200-2400, this rating indicates the filter captures finer airborne particulates typical in homes with allergy concerns.
• Pleated plus carbon construction: An electrostatically charged synthetic media combined with a flat panel infused with activated charcoal helps reduce common household odors and some VOCs.
• Designed as a Honeywell replacement: Sized to replace Honeywell 20x20x4 and similar filters with an actual depth of about 4 3/8 in, simplifying swap-outs for compatible systems.
• Made in the USA: Domestic manufacturing provides traceability and consistent build quality for buyers prioritizing origin.

Who It's For

These filters are best for homeowners and renters who need stronger particle filtration than basic fiberglass filters and want some odor control from an activated charcoal layer. They suit households with pets, light cooking odors, or seasonal allergy sufferers looking for MERV 13 protection without specialty equipment.

People who should look elsewhere include those whose furnaces or filter slots require the exact nominal 20 x 20 x 5 depth without variance, or users with HVAC systems that specifically require a full 5 in depth rather than the traditional 5 listed with an actual 4 3/8 in. Also avoid if a higher-capacity carbon filtration or medical-grade filtration is required.

Pros & Cons

Pros

• Good particle capture for home use thanks to the MERV 13 rating.
• Carbon layer reduces common odors such as cooking smells and light VOCs.
• Customers report easy installation and solid build quality as an OEM-style replacement.
• Made in the USA, which many buyers prefer for consistency.

Cons

• The actual dimensions are smaller than the nominal size printed, so measuring is necessary to ensure proper fit.

Specifications

Nominal Size	20 x 20 x 5 in H
Actual Size	19 5/8 x 19 7/8 x 4 3/8 in (19.63 x 19.88 x 4.38)
Filter Rating	MERV 13 (equivalent MPR 2200-2400)
Construction	Pleated electrostatic synthetic media with activated charcoal panel
Replaces	Honeywell 20x20x4 and similar filters with actual 4 3/8 in depth
Pack Size	4 pack
Country of Origin	Made in the USA

Our Verdict

The Nordic Pure 20x20x5 MERV 13 Plus Carbon four-pack is a sensible, cost-effective replacement for compatible 20 x 20 filter slots when improved particle capture and basic odor control are desired. Measure your filter slot to confirm the actual 19 5/8 x 19 7/8 x 4 3/8 in dimensions, then buy confidently-this package offers strong value and reliable construction for everyday home HVAC use.

Frequently Asked Questions

Will this fit my 20 x 20 x 5 slot?
Measure your existing filter or slot and compare to the stated actual size of 19 5/8 x 19 7/8 x 4 3/8 in; fit depends on the real dimensions, not the nominal label.

Does the carbon layer remove smoke and odors?
The activated charcoal panel helps reduce common household odors and some VOCs, but it is not a guarantee for heavy smoke or industrial contaminants.

Is the filtration level equivalent to Honeywell MPR ratings?
Nordic Pure MERV 13 is noted as equivalent to MPR 2200-2400, making it comparable for particle capture to filters in that range.