Austin Air Systems Limited is located in Buffalo, New York and maintains the largest air cleaner manufacturing facility in the world. For over 15 years, everything has been completed in-house. From the filter, to metal forming, to powder-coating, to the final assembly, every product is proudly made in the USA.

 Carbon Block Technology, Inc. (CB Tech) is located in Las Vegas, Nevada. Founded in 1970, CB Tech is a world leader in the development and manufacturing of compressed carbon block filters made in the USA. All products are tested and certified to the highest industry standards for quality and performance. CB Tech is internationally known for their popular Multipure Drinking Water Systems.

Nordic Pure is headquartered in Celina, Texas and has manufactured high-quality AC/Furnace filters since 1960. Nordic Pure filters come in pleated, carbon, baking soda, and Eco-friendly options completely made in the USA at their facility in Tulsa, Oklahoma.

Rainshow'r Manufacturing Co., Inc is located in San Gabriel, California and every product is made in the USA. With over 20 years of experience designing and manufacturing filters, Rainshow'r is a pioneer of the industry and the first manufacturer to use KDF media in their shower filter.

Brondell is headquartered in San Francisco, California with manufacturing partners in Asia. Since 2003, Brondell has developed and distributed high quality, healthy home products with a modern design.