Hi Keena,
We just searched Devasun Dryer online and couldn’t confirm its diameter. The diffuser size you inquired about will be compatible with 1.65” to 1.77” diameter dryers. And please make sure that the nozzle of the blow dryer is orbicular round shape and the dryer cylinder tapers toward the end of nozzle. Hope this helps!
If you have any other questions, just let us know.
Best regards,
Segbeauty
