Airex Filter Corporation

What Airex Filter Corporation does

Airex Filter Corporation is a second-generation, family-owned air filtration manufacturer and distributor headquartered in Hudson, New Hampshire. Founded in 1971, the company operates two facilities totaling 102,000 sq. ft. — a 78,000 sq. ft. primary manufacturing and distribution center and a 24,000 sq. ft. custom manufacturing facility — and maintains an inventory of 300,000+ filters for rapid fulfillment. Its proprietary product portfolio spans pleated filters (MERV 8-13), HEPA filters (99.97% to 99.99999% efficiency per IEST-RP-CC-034-1 and EN1822 standards), activated carbon filters for VOC and odor control, ASHRAE-rated filters (MERV 11-15), permanent metal filters, panel filters, and bulk media rolls and pads. Core technology centers on electrostatically charged 100% synthetic filter media, dimple pleat geometry in the Econocell-II line, and activated carbon-impregnated polyester substrates. The company is also an authorized distributor of AAF Flanders products, extending its catalog with leading national brands.

Airex generates revenue through direct manufacturing and sale of proprietary filters plus distribution margins on third-party brands, with quote-based unit pricing across one-time and multi-year commercial contracts. Its go-to-market combines enterprise field sales targeting healthcare, biotechnology, commercial property management, HVAC contractors, education, data centers, and government facilities, alongside a direct-to-consumer channel for residential customers. Distribution occurs via a registered commercial online portal (airexco.com), a dedicated residential ordering page, phone and email order capture, nationwide UPS/FedEx shipping, and an owned delivery fleet providing daily routes throughout Boston and New England with same-day service. The company positions itself as a filtration partner rather than a transactional vendor, offering technical expertise, on-site evaluations, custom filter builds with 24-48 hour turnaround, and consistent supply under ongoing service contracts. Active memberships in NAFA and MHEC, alongside Made in USA designation, support institutional and regulated-vertical credibility.

Name

Airex Filter Corporation

Legal name

Airex Filter Corporation

Website

https://airexfilter.com

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

11–50 employees

Short description

Airex Filter Corporation is a second-generation, family-owned manufacturer and distributor of custom and standard air, HEPA, HVAC, and carbon filters, serving healthcare, biotech, commercial, institutional, and residential customers across New England and nationwide from its Hudson, NH facilities.

Ownership category

akta.pro rank

Product category

Air Filtration Manufacturing

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Air Quality & Filtration Equipment (IAQ) (IMAHAKAI)

akta.pro secondary industry

Air Filtration & Indoor Air Quality Components (Filters/UV/ERVs-HRVs) (IMADANAE)

Keywords

• Air filtration manufacturing
• HEPA filter supply
• HVAC air filters
• Custom size filters
• Activated carbon filters

Headquarters

HQ city

Hudson

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. Air Filter Product Sales: Direct manufacturing and sale of proprietary air filtration products including pleated filters (MERV 8-13), panel filters, HEPA filters, carbon filters, permanent metal filters, ASHRAE filters, rolls and pads, and custom/OEM filters. Revenue is generated through one-time product sales with repeat purchase dynamics driven by filter replacement cycles. Custom manufacturing capabilities allow tailored products at premium pricing.
2. Distribution of National Brand Filters: Airex operates as a major stocking distributor for leading national brands, offering a full range of high-efficiency filtration solutions including rigid cell filters, extended surface (bag) filters, and HEPA products. The company is also an authorized distributor of AAF Flanders products. Revenue is generated through resale margins on distributed products.
3. HVAC Tools and Accessories: Sale of HVAC tools including Filter Puller/Pusher, Filter Box Grabber, One Trip Hook, Dual Worklight, and Portable Job Light. These complementary products support field technicians and contractors, generating ancillary revenue.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels9 records

Core offering

Airex Filter Corporation manufactures and distributes a full line of HVAC, HEPA, activated carbon, panel, ASHRAE, permanent, and custom-size air filters for commercial, industrial, healthcare, biotech, cleanroom, and residential applications. The company operates two manufacturing and distribution facilities in Hudson, NH totaling 102,000 sq. ft., maintains 300,000+ filters in stock, and provides 24-48 hour custom manufacturing turnaround alongside daily Boston and New England delivery via its owned fleet. It also serves as an authorized distributor for AAF Flanders products.

Product overview

Airex Filter Corporation offers a comprehensive portfolio of air filtration products and solutions for commercial, industrial, healthcare, and institutional applications. The portfolio centers on custom and standard-size air filters across multiple categories: Pleated Filters (MERV 8-13 including PM-SC, 82-R, GP-100, High Velocity, and Air Bear variants), HEPA Filters (Micro Air, Pureform, Terminal Modules, and High Capacity CS ranging from 99.97% to 99.99999% efficiency), Carbon Filters (DSC Dual Stage, CPM, FCP-OG, CCPM, and Superflow-VC for VOC and odor control), ASHRAE Filters (Econocell-II, Enviro-Pak, Air-Pak, and Superflow V-Bank configurations), Panel Filters (Polyester, Fiberglass, Anti-Microbial, and Ring Panel), Permanent/Washable Filters (EZ Kleen, MDM, HDA, EAF Electrostatic, and Grease Baffle), and Filter Media (Rolls, Pads, Automatic Rolls, and Hog's Hair). The company operates as both manufacturer and distributor, maintaining over 300,000 filters in stock with in-house custom manufacturing capabilities for odd sizes and specialty builds, supporting rapid turnaround and same-day shipping for Boston and New England markets.

Differentiator

Problem solved

Functional benefit

Products and services

• Custom Size Air Filters Custom-manufactured air filters built to exact specifications for non-standard HVAC applications, including odd sizes, non-standard depths, and special frames. Offered to commercial and industrial customers with 24-48 hour production turnaround.
• Pleated Filters

Quantifiable outcome

• 300,000+ filters maintained in stock with automated replenishment cycles, preventing stockouts for ongoing service contracts.
• +4 more outcomes

Segments8 records

Ideal customer profiles8 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• AAF FlanderscoreChannel Partner/ Reseller/ DistributorAirex Filter Corporation is an authorized distributor of AAF Flanders filtration products, a leading global manufacturer of air filtration solutions. This distribution partnership extends Airex's product portfolio to include AAF Flanders rigid cell filters, extended surface (bag) filters, and HEPA products alongside Airex's own manufactured offerings, enabling Airex to serve customers who prefer or require specific AAF Flanders products.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Freudenberg Filtration Technologies: Freudenberg Filtration Technologies (Viledon, micronAir) is a global manufacturer of HEPA, HVAC, and industrial filtration products. Comparable to Airex on HEPA and cleanroom product lines, particularly for life sciences and industrial process customers.
• AAF Flanders: AAF Flanders is a global manufacturer of air filtration solutions (rigid cells, bag filters, HEPA products) and is the national brand that Airex is authorized to distribute. It is both a supplier partner and a competitor in the broader HEPA and HVAC filtration category, particularly on large enterprise accounts.
• Donaldson Company: Donaldson is a large diversified filtration manufacturer with extensive industrial and HVAC filter offerings. While its primary focus is industrial filtration and OEM channels, it competes with Airex for larger commercial and industrial HVAC accounts across the Northeast.
• Mann+Hummel: Mann+Hummel is a global filtration company with industrial and indoor air quality divisions offering HEPA and HVAC filters comparable to Airex's higher-end product lines. It competes on large enterprise and cleanroom accounts, particularly through multi-national contracts.
• Filtration Group: Filtration Group is a private-equity-backed platform consolidating multiple filtration brands across HVAC, HEPA, and industrial air filtration. As a roll-up acquirer in the same category as Airex, it represents both a competitive threat and a potential exit/partner pathway.

Regional players

• Air Filters, Inc. Air Filters, Inc. is a regional HVAC and industrial filter manufacturer/distributor operating in the Mid-Atlantic/Southeast U.S., with a comparable dual manufacturer-distributor model. It illustrates the regional filter specialist archetype that Airex exemplifies in New England.

Others

• Lennox International: Lennox is a major HVAC equipment OEM whose installed base consumes MERV-rated replacement filters. While not a direct filter manufacturer competitor, it represents an adjacent channel and ecosystem participant that influences filter specification and purchasing decisions for commercial customers.

Direct peers

• Camfil: Camfil is a global leader in air filtration with a comprehensive MERV, HEPA, and cleanroom filter portfolio serving healthcare, biotech, and industrial customers. It directly competes with Airex on HEPA and cleanroom filtration, particularly for Boston-area biotech and hospital accounts.
• Koch Filter: Koch Filter manufactures pleated, rigid, bag, and HEPA filters for commercial and industrial HVAC, including similar MERV 8-13 and ASHRAE product lines as Airex. Recently announced acquisition by Atmus (~$450M, Nov 2025) makes it a key comparable for regional/national filter manufacturers.

Emerging players

• Trion (formerly Air Quality Engineering): Trion makes air purification systems and electronic air cleaners (e.g., Air Bear) for which Airex manufactures replacement cartridges. Trion is a complementary OEM customer and indirect competitor in residential/commercial air cleaning products.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@HVACairfilters_airexfilter
• Facebookfacebook.com/airexfiltercorp
• LinkedInlinkedin.com/company/airex-filter-corporation
• Instagraminstagram.com/airexfilter

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Airex Filter Corporation