However, in November 2013, the Daikin-McQuay group was again rebranded as Daikin Applied,[9] ending 80 years of business for the McQuay name in the United States.

[23] On March 2, 2023, Daikin announced they had acquired the San Diego–based custom air-handling equipment manufacturer Alliance Air Products.

[26] On May 21, 2024, Daikin Industries, led by President & CEO, Masanori Togawa with Chief global group officer and board chair, Noriyuk Inhoue, celebrated its centennial founding with a commemorative ceremony attended by 2,000 at The Symphony Hall to further support its "Forests for the Air" project.

[27] In 2005, Daikin and 3M paid $4 million in a US settlement over water contamination with preflourinated compounds in Decatur, Alabama, the site of several chemical production facilities.

[28] In 2017 Daikin agreed to pay $5 million to the West Morgan-East Lawrence authority for an advanced water purification filter.

[29] In 2021 Daikin, 3M, Toray, BFI Waste Systems, and Synagro paid a $98.5 million settlement with the city of Decatur over PFAS dumping in Morgan County.

[30] A 2004 study by Kyoto University Professor Akio Koizumi identified Daikin as the source of PFOA pollution in the Yodo river.

In 2021 blood tests of 9 residents living near Daikin's Yodogawa factory revealed elevated levels of PFAS, the highest in a 69-year old man 70 times the national average.