After reading some of the early reports of AirPods Max users noticing condensation inside the earcups under the memory foam ear cushions, I have been keeping an eye on mine. After two recent two hour or longer sessions using them, I can confirm that I have found small amounts of condensation inside of mine, as well. This definitely isn’t a fictitious issue.
This problem is interesting to me because I work in Commercial and Industrial HVAC, Energy Management and Monitoring and Systems Integration. The engine that’s driving this problem is right in my wheelhouse, which is a big reason why I decided to write about it.