Our manufacturing plant, main offices and warehouse are in a 52,000 square foot facility in Fort Worth, Texas. Additional distribution warehouses, customer service and sales offices are in Dallas, Austin, San Antonio and most recently Houston. Tex-Air filters technicians install over 90,000 filters a month for various commercial customers. As a result there are few filtration situations we have not seen.
Tex-Air produces all of its pleated filters including MERV 6, MERV 7, MERV 8, MERV 10, MERV 11, Carbon and MERV 13 in one inch, two inch and four inch filter sizes. The company also specializes in producing metal filters for kitchens, fresh air intakes and other applications. In addition, we produce custom filters for machinery protection, construction, OEM, paint booth, computer protection and cellular phone switches.
The principals of the company, Chairman Jim Rosenthal, President Stevan Brown, Dallas Regional Manager Benny Aycoth and Central Texas Regional Manager Patrick Rosenthal are all Certified Air Filter Specialists (CAFS) by the National Air Filtration Association. Tex-Air Filters has four other CAFS on staff. This combination of experience and training gives us the breadth of knowledge to solve our customer’s air filtration and indoor air quality needs.
Jim Rosenthal, CAFS, Chairman and CEO
Jim is a co-founder of Air Relief Technologies, Inc., the parent company of Tex-Air Filters. He has been in the air filtration industry since 1997 and is a Certified Air Filter Specialist (CAFS) from the National Air Filtration Association (NAFA), where he served as President in 2010. He is very involved in the air filtration industry, frequently contributing to industry and professional publications on filtration, indoor air quality and environmental controls for allergy and asthma. Jim received his BA from Colorado College and his Masters from the University of Pittsburgh. As an undergraduate, he also attended the Netherlands School of Business. He is currently the President of the Fort Worth Civil War Round Table and participates in a number of other national and local organizations.
Stevan Brown, CAFS, President and COO
Stevan is a co-founder of Air Relief Technologies, Inc., the parent company of Tex-Air Filters. He has been in the air filtration industry since 1997 and is a Certified Air Filter Specialist (CAFS) from the National Air Filtration Association (NAFA). He is also a NAFA Certified Technician (NCT), an NCT II, which includes certification in the installation of HEPA filters, and holds a Texas HVAC License – TACLA023325C. Stevan received his BS from the University of Texas at San Antonio and his Masters from Texas Christian University.
Benny Aycoth, CAFS, Dallas Regional Manager
Benny is a Certified Air Filter Specialist (CAFS) from the National Air Filtration Association (NAFA) who has been in the filter business for over 20 years. He is very knowledgeable about all aspects of HVAC filtration from applications in schools to commercial buildings and medical facilities. He is also an expert in filtration for industrial paint systems. Benny is an active member of the ACCA North Texas Chapter and prides himself in finding solutions to his customers’ filter needs.
Patrick Rosenthal, CAFS, Central Texas Regional Manager
Patrick started the Austin branch of Tex-Air Filters in 2007 and is now the Regional Manager over Central Texas. He is a Certified Air Filter Specialist (CAFS) from the National Air Filtration Association (NAFA), where he serves on the Board of Directors for the Southwest Region. He has experience at all levels of the industry including healthcare, manufacturing, commercial office and the government sector. Patrick holds a BA from the University of Texas.
Dara Chhan, CAFS, San Antonio Branch Manager

Dara started as a filter technician at the Austin branch in 2012 while attending school at The University of Texas as Austin. He has been the San Antonio Branch Manager since April of 2017.
He is a Certified Air Filter Specialist (CAFS) from the National Air Filtration Association (NAFA) and also a member of RSES San Antonio Chapter. He is very passionate about helping to provide the best indoor air quality for all customers. Playing and teaching tennis is one of his many hobbies. He is one of four siblings. He is fluent in English, Mandarin, and Khmer.
Anthony Thomas, CAFS, Houston Branch Manager

Anthony started his air filter career as a Warehouse Associate at the Dallas branch in September of 2016. He excelled at each position offered to him, ultimately leading to the Houston Branch opening in October 2021 with Anthony commanding the charge. He is a Certified Air Filter Specialist (CAFS) from the National Air Filtration Association (NAFA).
Anthony is a veteran of the United States Army, serving a total of 6 years before he began his profession with Tex-Air filters in September 2016. With his background he brings a level of tact, effectiveness and efficiency to every situation. The customer experience is his top priority. Anthony takes pride in himself as well as his profession, and enjoys challenges which allow for him to grow personally and professionally.