Amazon had the little Dash air fryer at the top of the sale list - and it says it has a non-stick coating. PTFE. So I looked up PTFE. And found this:

Are Teflon and PTFE the same thing?

Essentially, the only difference lies in the name. PTFE is the shortened name of the chemical polytetrafluoroethylene, and Teflon is the trade name of the same polymer. If you are looking for a highly flexible, non-stick material that is chemical, electrical and thermal resistant, look no further than PTFE.

So nope. Not gonna start cooking on Teflon.