{{Infobox company | name = Air Products and Chemicals, Inc | logo = Logo Air Products.svg | type = Public company | traded_as = | founded = in Detroit, Michigan, U.S. | founder = Leonard P. Pool | area_served = Worldwide | location = | key_people = Seifi Ghasemi (CEO),(chairman) and (president) | industry = Industrial gas, chemicals | revenue = (2020) | operating_income = (2020) | net_income = (2020) | assets = (2020) | equity = (2020) | num_employees = 19,275 (2020) | website = | footnotes = }}Air Products and Chemicals, Inc.' is an American international corporation whose principal business is selling gases and chemicals for industrial uses. Air Products' headquarters is in Allentown, Pennsylvania, in the Lehigh Valley region of Pennsylvania. Air Products is the tenth largest employer in Lehigh County, Pennsylvania. Products Air Products serves customers in technology, energy, healthcare, food and industrial markets worldwide with atmospheric industrial gases (mainly oxygen, nitrogen, argon, hydrogen and carbon dioxide), process and specialty gases, performance materials and chemical intermediates. Air Products produces refinery hydrogen, natural gas liquefaction (LNG) technology and equipment, epoxy additives, gas cabinets, advanced coatings and adhesives. Air Products provided the liquid hydrogen and liquid oxygen fuel for the Space Shuttle External Tank. Air Products has had a working relationship with NASA for 50 years and has supplied the liquid hydrogen used for every Space Shuttle launch and the Mercury and Apollo missions. In 2013, Air Products' high purity BIP (built-in purifier) argon was used to determine a more accurate value for the Boltzmann Constant. On September 17, 2015, Air Products announced its intent to spin off its Materials Technologies business. This new stand alone company has been renamed Versum Materials. Environmental record In 2010, Air Products was awarded the Rushlight Hydrogen and Fuel Cells industry award for the Series 10 hydrogen fuelling station. The Rushlight Awards celebrate the leading environmental technologies and innovations by organizations throughout the UK and Ireland. The purpose is to promote what is happening in the world of hydrogen and fuel cells to the public and enable further development and funding to be granted toward reducing carbon emissions. On January 15, 2004, Air Products (NYSE: APD) was named a Maplecroft Climate Innovation Indexes (CIIs) Leader, ranking 17th out of the 300 largest US companies evaluated for their climate-related innovation and carbon management programs. Air Products is currently working on several preeminent carbon