AdaptHealth Corp., f/k/a DFB Healthcare Acquisitions Corp. ("DFB"), provides home healthcare equipment, medical supplies, and home and related services in the U.S. DFB was a SPAC, also known as a blank check company, incorporated for the purpose of entering into a merger, share exchange, asset acquisition, share purchase, recapitalization, reorganization, or similar business combination with one or more businesses or entities. On July 8, 2019, DFB announced that it had entered into a definitive agreement for a business combination with Legacy AdaptHealth, the third largest distributor of home medical equipment ("HME") in the U.S. Upon the closing of the Merger, DFB renamed itself “AdaptHealth Corp.” and its Class A common stock began trading on the NASDAQ under the ticker symbol “AHCO.”