Wearing active noise cancellation headphones over Airpods Pro dangerous?

[Starfyre]

With wireless earbuds with active noise cancellation, if you were to wear say Sony or Bose headphones with Active Noise Cancellation on top, would that effectively double the noise cancellation or does it have a negative/dangerous effect?

 

[dsherh5]

With wireless earbuds with active noise cancellation, if you were to wear say Sony or Bose headphones with Active Noise Cancellation on top, would that effectively double the noise cancellation or does it have a negative/dangerous effect?

Not sure about the negative/dangerous effect, but this video exactly addresses the first part of your question. Hope it’s helpful.