Koch Filter

What Koch Filter does

Koch Filter Corporation, founded in 1966 and headquartered in Louisville, Kentucky, is a manufacturer of indoor air filtration products serving commercial, industrial, and critical-environment customers. The company operates four US manufacturing facilities (Louisville KY, Houston TX, East Greenville PA, Mira Loma CA) and distributes to 1,000+ customers across 50+ countries. Its product portfolio spans 18+ categories and includes pleated filters (Multi-Pleat series, MERV 8-13), HEPA filters (BioMAX series, 95% to 99.999% efficiency at 0.3 microns), DuraMAX V-Bank filters, MicroMAX mini-pleat filters, rigid cell filters, bag filters, gas phase and carbon filters (DuraPURE, OdorKleen, DuraKleen), dust collection cartridges, gas turbine filters, paint spray arrestors, frames and housings, fan filter units, and portable HEPA air cleaners (Envirco IsoClean). Underlying technology centers on filter media engineering — synthetic, fiberglass, activated carbon, and HEPA-grade microfiberglass — with efficiency ratings up to 99.999% at 0.3 microns for hospital, pharmaceutical, semiconductor, and cleanroom applications. ISO 9001:2015 quality systems cover all manufacturing and business processes.

The company serves 23+ vertical markets including airports, automotive, cleanrooms, data centers, food processing, gas turbines, healthcare, hospitality, industrial coatings, industrial plants, mining, museums, pharmaceuticals, sports arenas, universities, EV battery, government, aerospace & defense, and logistics. Go-to-market is direct sales staffed by technically trained sales engineers providing product selection, specification, and installation support; pricing is quote-based B2B with 30-day payment terms, and no public list pricing is published. Revenue is generated entirely through hardware sales of standard catalog and custom-engineered filtration solutions, with terms allowing price adjustments based on raw material, labor, tax, and tariff inputs.

Koch Filter reported $156 million in revenue for fiscal year 2025. It was previously owned by Truelink Capital through Air Distribution Technologies, Inc., and on January 7, 2026 was acquired by Atmus Filtration Technologies for approximately $450 million in cash, becoming the foundation of Atmus's new Industrial Solutions segment. Rakesh Gangwani was appointed President of the segment post-acquisition.

Name

Koch Filter

Legal name

Koch Filter Corporation

Website

https://kochfilter.com

Company type

Private

Founded year

1966

Operating status

Acquired

Headcount range

101–250 employees

Short description

Koch Filter Corporation is a Louisville, Kentucky-based manufacturer of indoor air filtration products serving commercial, industrial, healthcare, pharmaceutical, data center, and power generation customers across 50+ countries. Founded in 1966, it operates four US manufacturing facilities and produces a broad portfolio spanning MERV through HEPA 99.999% efficiency ratings.

Ownership category

akta.pro rank

Headquarters

HQ city

Louisville

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Air Filtration Products: Koch Filter generates revenue through the sale of industrial and commercial air filtration products including pleated filters, HEPA filters, bag filters, rigid cell filters, gas phase filters, and specialty filtration products. Revenue streams include both standard product sales and custom-engineered filtration solutions for specific applications.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Koch Filter manufactures and sells indoor air filtration products for commercial, industrial, and critical-environment applications. The portfolio spans medium- and high-efficiency pleated filters (MERV 8-16), HEPA filters with efficiencies from 95% to 99.999% at 0.3 microns, extended-surface mini-pleat V-bank filters, rigid cell filters, bag filters, dust collection cartridges, gas phase activated carbon filters, gas turbine inlet filters, and supporting frames, housings, fan filter units, and HEPA air cleaners. Products are engineered and produced at four U.S. manufacturing facilities and distributed to over 1,000 customers across 50+ countries.

Product overview

Koch Filter offers a comprehensive portfolio of indoor air filtration products organized across multiple product categories. The core product lines include Pleated Filters (Multi-Pleat series with MERV 8-13 ratings), HEPA Filters (BioMAX series with 95%-99.999% efficiency), DuraMax V-Bank Filters (2v, 4v configurations), MicroMAX Mini Pleat Filters, Rigid Cell Filters (Multi-Flo and Multi-Cell series), Multi-Sak Bag Filters, Maxi-Grid Panel Filters, Disposable Filters (fiberglass and polyester), Cube and Pocket Filters (Duo series), Bulk Media Pads and Rolls, Automatic Roll Filters, Dust Collection Filters (ICF series), Gas Turbine Filters, Frames and Housings, Fan Filter Units, Paint Spray booth filters (SprayStop series), Carbon and Gas Phase Filters (DuraKleen, OdorKleen, DuraPURE), and HEPA Air Cleaners (Envirco IsoClean series). The company also serves 23+ industries including airports, automotive, cleanroom applications, data centers, food processing, healthcare, pharmaceuticals, and semiconductor manufacturing. The products range from residential prefilters to industrial-grade HEPA filters for critical environments, with supporting accessories including filter frames, housings, and specialty media.

Differentiator

Problem solved

Functional benefit

Products and services

• Pleated Filters (Multi-Pleat series) Extended surface pleated panel filters for commercial and industrial HVAC applications, including Multi-Pleat XL8 (MERV 8), XL10 (MERV 10), XL11 (MERV 11), BOSS (MERV 9, 11, 13), Green13 (MERV 13), Elite, GT-HD and GT (gas turbine), HT (high temperature), and Residential Series products. Designed for maintaining optimal indoor air quality in commercial and residential HVAC systems.
• BioMAX HEPA Filters High efficiency particulate air filters with 95%, 99.97%, 99.99%, and 99.999% efficiency ratings at 0.3 microns for hospital, commercial, industrial, pharmaceutical, and cleanroom applications. Includes BioMAX CS minipleat for clean rooms, HEPA 95, HEPA 99.97, HEPA 99.99, HEPA 99.999, HEPA HC high capacity, V2400, and V2400-P configurations.
• DuraMAX V-Bank Filters Extended surface air filters engineered for durability and prolonged filter lifecycles in demanding industrial environments. Includes DuraMAX 2v, 2vS, 4v, 4vS-16 (MERV 16 for pathogen control in swine operations), 4v32, 4vS, and DuraGlove synthetic prefilter configurations.
• MicroMAX Mini Pleat Filters Extended surface minipleat filters for commercial and industrial air filtration. Includes MicroMAX, PL2S, PL4S (enhanced dust holding), and PL6 configurations using high-efficiency synthetic media.
• Rigid Cell Filters (Multi-Flo, Multi-Cell, Maxi-Cell) Synthetic and microfiberglass extended surface rigid air filters for medium and high efficiency applications. Includes Multi-Flo Series S and G, Multi-Cell, Multi-Cell HT (high temperature), Multi-Cell CS (compact), Maxi-Cell (turbomachinery air inlet barrier), and DuraKleen V8 and V15 activated carbon filters.
• Multi-Sak Bag Filters Extended surface bag filters for industrial and commercial air filtration. Includes Multi-Sak Series S (glass media), Series G, and Oil Mist Filters for medium and high efficiency synthetic extended surface applications.
• Maxi-Grid Panel Filters Internally-supported panel filters for commercial and industrial air filtration. Includes Standard Size Link Panels, Standard Panels, Slip-On Sleeves for easy installation, and 600L Diffusion Panels for paint spray booth applications.
• Disposable Filters Commercial and industrial disposable filters for light-to-medium duty applications. Includes Fiberglass Disposable, Fiberglass Special Size, Polyester Disposable, and Polyester Special Sizes in standard and custom dimensions.
• Cube and Pocket Filters (Duo series) Extended surface synthetic media air filters for commercial and industrial applications. Includes Duo-Cap medium efficiency cartridge filters, Duo-Cube Series cube configuration, Duo-Pak 40 two-pocket self-seal filters, Multi-45 cartridges for Conoflo/Cono-45/Conopac-45 systems, and Multi-Test Cartridge/Rigid replacement filters.
• Bulk Media Pads and Rolls Filter media supplied in pad and roll formats for large-scale air filtration systems. Includes Hogs Hair rigid synthetic media, Specialty Media for specialized industrial requirements, Super Grade Fiberglass Pads and Rolls, and Synthetic Media Pads and Rolls.
• Automatic Roll Filters Replacement roll filters for automatic roll filter systems. Includes TYPE GD fiberglass, TYPE MD synthetic, and TYPE P synthetic media configurations.
• Dust Collection Filters Engineered filters for industrial dust collector and baghouse systems. Includes 2 Stud Pleated Bag Filter, 3 and 4 Hook Euro Filter, 3 Stud Pleated Bag Filter, 8.125 Top Load Metal Pleated Bag Filter, Cartridge Filter Media Options, Conical Industrial Cartridge Filter, FDA Filters (food and pharmaceutical compliance), Flat Cell Cartridges, Large Square Rectangular cartridges, Oil Mist Cartridges and WSO, Oval Replacement Filters, PB Panel Filter, Plastic 4 Knob Filter, and Rectangular Flange Filter for gas turbine air inlets.
• Gas Turbine Filters (ICF Filters) Industrial cartridge filters designed for gas turbine air inlet filtration, preventing erosion, fouling, and corrosion of turbine components. Replacement cartridges available for all types of gas turbine barrier systems.
• Frames and Housings Filter frames, housings, clips, and fasteners for commercial and industrial air filtration installations. Includes A8 Type Clips and Fasteners, AR Frames and Clips, Flat Bank ASHRAE Housing, HEPA Crank Lock Housing, Pad Holding Frames, Permanent Metal Filters, Side Access ASHRAE Housing, Type A8 Frames, and V-Bank ASHRAE Housing.
• BioMAX Fan Filter Units Fan filter units for critical clean air environments including cleanrooms, providing integrated HEPA filtration and air circulation for contamination-free spaces.
• Paint Spray Booth Filters (SprayStop series) High efficiency paint arrestor and overspray filtration products for paint spray booth applications. Includes KR-1 Diffusion Panels, KDF 600 diffusion media, Paint Pockets, SprayClean Duo-Pak, SprayStop E-Pak 650 and 950, SprayStop Expanded Paper, SprayStop FG fiberglass, SprayStop HC Duo-Pak, SprayStop NESHAP 2 Stage System (Method 319 compliant), SprayStop S Duo-Pak, SprayStop S-SHC-HCX, SprayStop STK-10, and SprayStop Universal Cube HC and HE.
• Carbon and Gas Phase Filters High efficiency activated carbon and gas phase filters for odor control and VOC removal in commercial and industrial applications. Includes DuraKleen, DuraKleen V8 and V15, DuraPURE extended surface activated carbon, OdorKleen 200 M13 (MERV 13 carbon/alumina), OdorKleen 250 (MERV 8 carbon/particulate), OdorKleen 600 (MERV 10 carbon/alumina), and OdorKleen ES (MERV 8 pleated panel).
• Envirco IsoClean HEPA Air Cleaners Portable, compact, and ceiling-mounted HEPA air cleaners for contaminant and pathogen control. Includes Envirco IsoClean 400 (portable/compact), IsoClean 800 (portable for larger spaces), IsoClean CM (ceiling-mounted), and IsoClean FM (ceiling-mounted for clean air environments).

Quantifiable outcome

• HEPA filtration efficiency up to 99.999% at 0.3 microns
• +1 more outcomes

Named customers1 record

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core and minor.

• Atmus Filtration TechnologiescoreStrategic or Co-development Partner · 7 January 2026Atmus Filtration Technologies completed acquisition of Koch Filter Corporation for approximately $450 million in cash from Air Distribution Technologies, Inc. (a Truelink Capital portfolio company). The acquisition establishes Atmus' new Industrial Solutions segment and expands its portfolio into commercial and industrial HVAC, data centers, and power generation markets. Transaction expected to be accretive to Adjusted EPS and Adjusted EBITDA margin in 2026 and achieve high-single-digit ROIC by 2028.
• Air Distribution TechnologiesminorOthers · 7 January 2026Parent company of Koch Filter Corporation prior to acquisition by Atmus Filtration Technologies. Koch Filter was a subsidiary of Air Distribution Technologies, a portfolio company of Truelink Capital.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Camfil: Swedish-based global manufacturer of commercial and industrial air filters, including HEPA, MERV-rated pleated, and molecular/gas phase filtration. Direct competitor to Koch in cleanroom, healthcare, and data center applications with a similarly broad product portfolio.
• Donaldson Company: US-listed industrial filtration manufacturer with overlapping product lines in dust collection, HEPA, gas turbine inlet filtration, and industrial air filters. Comparable scale and serves many of the same industrial, cleanroom, and power generation customers as Koch Filter.
• AAF (American Air Filter) / Flanders: AAF is a long-established competitor in commercial and industrial air filtration, offering HEPA, MERV-rated, gas phase, and cleanroom filters. Direct overlap with Koch in HVAC, life sciences, and industrial process filtration.
• MANN+HUMMEL: German global filtration company with substantial presence in commercial/industrial air filtration, including HEPA and molecular filtration. Comparable to Koch in product breadth and in serving automotive, industrial, and cleanroom customers.
• Filtration Group: Private industrial filtration company producing air filters, HEPA, and dust collection products. Direct competitor in commercial HVAC, industrial, and life sciences filtration, with comparable product portfolio to Koch.
• Freudenberg Filtration Technologies: Division of the Freudenberg Group manufacturing HEPA, MERV-rated, and molecular filtration products for cleanroom, healthcare, and industrial markets. Closely comparable to Koch in HEPA capability and cleanroom application focus.

Broad incumbents

• Atmus Filtration Technologies: Koch's parent company since January 2026; Atmus is a global filtration business spun out of Cummins focused on on-highway and off-highway engine filtration. The newly created Industrial Solutions segment is built around Koch Filter's commercial/industrial air filtration business.
• Parker Hannifin: Large diversified industrial manufacturer with a filtration division covering HVAC, compressed air, and process filtration. Overlaps with Koch in industrial air and gas filtration, with substantially greater scale and geographic reach.
• 3M (Filtration / Personal Safety): Global conglomerate with a large filtration business serving HVAC, industrial, and cleanroom markets. Overlaps with Koch in commercial air filtration though as part of a much broader industrial portfolio.

Others

• SPX Technologies: Through its detection/HVAC-adjacent businesses, SPX has historically supplied air quality and filtration products. Less direct overlap but a relevant adjacency in commercial IAQ and cleanroom sensing/filtration.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Koch-Filter-604192332940818
• LinkedInlinkedin.com/company/koch-filter-corporation

Compliance1 record

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 Koch Filter