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​Airex Filter Corporation specializes in custom and non-standard air filters engineered to meet the exact specifications of HVAC contractors, healthcare facilities, life sciences environments, and institutional clients. We understand that in critical environments, lead times and precision matter—our team is structured to deliver both.

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As a manufacturer and high-volume distributor, we maintain an inventory of over 300,000 standard-size filters available for immediate deployment. Our product range includes fiberglass panel filters, pleated filters, cartridge filters, rigid cells, bag filters, and HEPA filtration systems. We offer multiple performance tiers—from economy to high-capacity—across MERV 8, 10, 11, and 13 ratings to meet varying system requirements and compliance standards.

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For custom and odd-size applications, we provide fast-turn manufacturing with tight quality control, ensuring consistent performance across every order. Our inventory management system is designed for continuity—when stock items are shipped, production is automatically triggered to replenish within 24 hours, minimizing supply disruptions for ongoing service contracts and large facilities.

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Same-day shipping is available for standard orders via common carriers, while our dedicated fleet supports scheduled delivery routes across New England—offering a cost-effective and reliable alternative for contractors and facility teams managing tight timelines, particularly in the Boston metro area.

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Engineered for Performance & Efficiency

With advancements in filtration media, our pleated filters are designed with low resistance to airflow, helping reduce system strain and improve energy efficiency—an important consideration for large-scale HVAC operations in hospitals, schools, and commercial buildings.

In addition to our own manufactured products, we are a major stocking distributor for leading national brands, offering a full range of high-efficiency filtration solutions. This includes rigid cell filters, extended surface (bag) filters, and HEPA filters with efficiencies ranging from 95% to 99.99%, available in a variety of frame materials including wood, galvanized steel, aluminum, and stainless steel—ideal for cleanrooms, healthcare environments, and controlled manufacturing spaces.

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Manufacturing & Operational Capacity

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Headquartered in Hudson, New Hampshire, our operations span two dedicated facilities:

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• Primary Manufacturing & Distribution Facility (78,000 sq. ft.)
  Focused on high-volume production of standard-size filters using semi-automated lines and advanced manufacturing equipment. This facility also houses extensive inventory for rapid fulfillment of rigid cells, bag filters, and HEPA products.

• Custom Manufacturing Facility (24,000 sq. ft.)
  Dedicated exclusively to the production of custom and non-standard filters, supporting the growing demand for specialized applications across healthcare, biotech, and commercial sectors.

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Technical Expertise & Industry Focus

Our team brings decades of experience across HVAC systems, air filtration, cleanroom environments, and liquid filtration. We work closely with contractors, engineers, and facility managers to solve complex filtration challenges, optimize system performance, and maintain compliance in regulated environments.

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We proudly support a wide range of industries, including:

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• Healthcare & Hospitals

• Biotechnology & Pharmaceuticals

• Data Centers

• Education (K-12 & Higher Ed)

• Government & Municipal Facilities

• Mechanical Contractors & Service Providers

• Distribution Partners

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From routine maintenance programs to highly specialized filtration requirements, Airex Filter Corporation delivers the scale, speed, and technical capability that today’s commercial and industrial environments demand.