There are a few things to keep in mind when looking for a blow dryer that will work well for 4C hair. First, you'll want to make sure that the dryer has adjustable heat settings. This will allow you to find the perfect temperature for your hair type and avoid causing any damage. Second, you'll want to look for a dryer with a diffuser attachment. This will help to evenly distribute the heat and prevent your hair from frizzing up. Lastly, make sure to read reviews before purchasing a blow dryer. This will help you find one that has been proven to work well for others with 4C hair. If you're looking for a specific recommendation, we would suggest the BaBylissPRO Nano Titanium Dryer. This dryer has all of the features that you're looking for, and it has received rave reviews from those with 4C hair.