Zefon International

Zefon International Air Sampling Equipment

Zefon International has a longstanding reputation as a manufacturer and distributor of air sampling equipment and media. We design our products for today's working professionals, who demand quality at an affordable price. With an extensive selection of sampling media and cassettes, sampling pumps and calibrators, IAQ instruments, gas detection equipment, and accessories available, we are a one-stop shop for environmental technicians, indoor air quality analysts and anyone else working in industrial hygiene, environmental health or occupational safety.

Our Products

Zefon International manufactures the following air sampling equipment:

    • Air sampling media and cassettes: buy zefon sampling cassettes

      We design our proprietary Air-O-Cell®Via-Cell® air sampling filter cassettes for some of the most demanding applications. Use them to collect samples to test for mold spores, pollen, insect parts, and other contaminants. Our Solu-Sert™ soluble filter capsules are NIOSH-approved to test for aluminum, arsenic, barium and other contaminants and our Gravi-Sert™ filter capsule applications include NIOSH testing for carbon black, total dust and respirable dust levels. Zefon is the only manufacturer that offers a disposable inhalable sampler (DIS) that complies with ACGIH, NIOSH, British Method MDHS, and ISO/CEN standards. The Zefon Nanoparticle (NRD) sampler is designed to be worn for personal exposure monitoring, to collect nanoparticles that are likely to be deposited into the respiratory tract.


    • Air sampling pumps and calibrators: buy zefon sampling pumps

      Zefon manufactures personal monitoring pumps, IAQ pumps, and area pumps. Our products, such as the Escort ELF® and Bio-Pump® Plus, are lightweight, easy to use and accurate. Zefon pumps work with a wide range of sampling media, including our own preloaded cassettes and filters Pairing our pumps with the appropriate filter media offers the pump operator a convenient way to collect and test for exposure to silica, beryllium, asbestos, lead, respirable dust, hazardous particulates, mold spores, and more.


    • Gas detection equipment: buy zefon gas detection equipment

      Our Zefon Tedlar® Gas Sampling Bags with ZP Valves collect bulk samples for off-gassing for later analysis. Our gas sampling bags are manufactured from clear, 2 mil Tedlar® PVF (polyvinyl fluoride) film and feature a unique easy to use valve with built-in septum. We offer a range of different sizes for your gas sampling needs.


We are continually expanding our product lines to meet the changing needs of today's air quality professionals. Download our Product Literature to explore our full catalog of air sampling equipment. You can also contact us directly to speak with a representative.

Why Choose Zefon Air Sampling Equipment?

Zefon International is the professionals' choice when it comes to air sampling equipment. We've built our reputation on a commitment to quality products and affordable pricing. ISO 9001:2015 certification is a big part of this. Our internal quality management system helps ensure a level of defect-free consistency in everything we do. It also helps us run a lean business that keeps our costs down — allowing us to pass the savings onto our customers.

When you make Zefon International your choice for air sampling equipment, you'll benefit from superior reliability and ease of use. We design our products in compliance with the applicable OSHA, NIOSH and other regulatory standards, so they're ready for immediate deployment in any application. Use them for indoor air quality inspection, flood remediation, clean room monitoring and other demanding jobs.

Our online store is the best place to shop our proprietary line of cassettes, media, sampling pumps and other products. Enjoy fast and affordable shipping throughout the United States, as well as our best possible pricing on all items. You'll also benefit from our highly knowledgeable staff — no one knows our products better than us, and our team is always available to answer your questions or recommend the right product for your application. Call or email our office for assistance today.

Shopping Online at Zefon International

In addition to our own products, we also sell portable instruments, gas detection equipment and laboratory safety supplies by trusted third-party manufacturers like Sensidyne®, Gastec®, Met One Instruments and more. Our carefully chosen inventory ensures we always have the right item for your needs.

Shopping from outside the United States? We offer international sales of all Zefon air sampling equipment through our network of dealer partners. Visit our Dealer Locator page to find a representative near you.

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