If there is a UL tag on the cord, more likely forged in China.
The product works just fine without the thermal overload switch. Needless expense to put one in.
I bought 4 air fryers at Best Buy this past year but they were all the Bella brand.
Chy-na!
I used to build electric signs in FL and was self employed selling to the trade for a time. I had my UL listing with special electric sign UL stickers to put on the signs I built. I tend to look for the UL logo on things but rarely see it anymore. What I see is ETL, if anything, a Canadian version of UL that’s easier and cheaper to get.