Established in 2005, Polytechnic Resources, Inc. manufactures pulmonary function testing filters at its Seaford, Delaware facility, making it one of the few U.S.-based suppliers in this field. Its filters are made in the USA under ISO 13485:2016 quality standards, and the company’s facility is powered entirely by solar energy.
ISO 13485:2016
certification
FDA Registered
registration
Reading Technologies, IncFounded in 1987 with a single patented filter, Reading Technologies, Inc. manufactures filtration and air-treatment equipment for compressed-air systems. Based in Reading, Pennsylvania, the company has expanded to more than 1,000 models and serves compressed-air applications across the United States and overseas, with custom engineering available when standard equipment does not fit.READING, PA
Filpro CorporationSince 1980, Filpro Corporation has manufactured and distributed industrial filtration products for air, liquid, and gas applications. Based in West Point, Pennsylvania, the company combines its own replacement-filter line with name-brand products and custom designs, serving OEMs and industrial users worldwide. Filpro is particularly distinctive for pairing filtration distribution with in-house design and manufacturing, including replacement elements for dust collection and air-handling equipment.WEST POINT, PA
Instrumentation Industries, IncSince 1967, Instrumentation Industries, Inc. has manufactured respiratory-care and other medical components in Pittsburgh, including the adapters, connectors and emergency ventilation parts used in clinical settings. The company molds plastic and silicone and fabricates metal in-house, supporting OEM customers from prototypes through production with its own tooling, machining, engineering and assembly capabilities. Its products are made in the USA, and the facility is ISO 13485:2016 certified.BETHEL PARK, PA
Cosmos Air Purification & Environmental Systems IncEstablished in 1996, Cosmos Air Purification & Environmental Systems Inc. designs and manufactures air-filtration products and tailored clean-air systems for residential, commercial, and industrial settings. The Landover company became a one-stop filtration supplier after acquiring National Capital Filter Corporation in 1997, pairing custom filter manufacturing with change-outs, system design, and its Filternomics™ education program. Its project history includes filtration work associated with prominent Washington-area sites such as the Pentagon and the White House.HYATTSVILLE, MD