Seasons 4 is a manufacturer of Clean Room Ceiling systems incorporating bottom load extruded or fabricated stainless grid; 2’ x 4’ to 4’ x 4’ individual fan filter units complete with DC motor technology and controls; large plenum systems without fans or with fans and controls or built in recirculation air handlers.


Camfil Farr Co. is a manufacturer of Bag In Bag Out Housings; Nuclear - Biological – Chemical containment systems; Homeland Security application systems; Clean room HEPA filters and Terminal HEPA filters; Low to high efficiency ASHRAE rated filters; Carbon filters; Hardware and Side Access Housings; and Moisture eliminators. Feature products include the Camfil Farr 30/30 (the first pleated filter) the Durafil (First pleated Vee style filter) the Filtra 2000 (the first mini pleated Vee style HEPA filter) the Pharmaseal Hood (a room side replaceable TAF specifically designed for the Pharmaceutical, Life Science and Healthcare industries) and Low Wall returns.


Purafil Inc. is a manufacturer of chemical media and associated hardware to remove gases and odors in the following applications; Clean rooms; Industrial; Commercial; Wastewater; Preservation; Archives; Museums; Historic Libraries; Ethylene removal; Building protection; Energy savings; and Air Monitoring with Environmental Reactivity Devices.


Steril – Aire Inc. is a manufacturer of the original High Output UVC emitters ™  for HVAC applications. Germicidal UVC emitters utilize ultraviolet light to mitigate bio-aerosols and airborne micro-organisms while returning cooling coils to their as built condition and providing a high return on investment and significant energy savings into the future.


Clean Rooms International Inc. is a manufacturer of Modular hard wall and soft wall clean rooms, T – grid systems, light fixtures, ceiling panels, SAM fan filter units and accessories, Custom isolation systems, Clean benches, fume extractors, air showers, and pass thru cabinets.


Envira Health has established a team of experts to evaluate and solve the problems associated with unacceptable IAQ. An assessment program for your building is designed from a menu of services and tailored to meet your individual building needs. The programs are cost-effective, and the diagnosis is always followed by recommendations to solve existing IAQ problems or to prevent potential problems.

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