Taimyr Air Company was created in 2009.
Kyrgyzstan Air Company was created in 2006.
Spring Air Company was created in 1926.
Air One Nine Company was created in 2004.
Vietnam Air Service Company was created in 1987.
Russ Air Transport Company was created in 1999.
Canadian Special Air Service Company was created in 1947.
Westinghouse Air Brake Company General Office Building was created in 1890.
George Westinghouse invented the air brake, and created the Westinghouse Air Brake Company to manufacture and sell it. That company is still in business.
If you own an indoor air purifier that is by a company and has proprietary parts, I would not recommend creating your own mockups of the design the company has created. If you have a simple air filter that is obvious what components do what, go for it.
Dangerous Company was created in 1997.
Jordan Company was created in 1982.
Edison General Electric Company was created in 1890.