I’m going to assume that by “white specks” on the film you actually mean clear spots. If that is the case, then I get them too, but rarely with Pictorico films. (I could not say the same about other films that I tried long ago.) It is possible that the coating has flaked off, but I think it is much more likely from airborne dust that settled onto the film between removing it from the package and ink being deposited. I’d estimate that I get a clear spot or 2 on 1 out of 5 or 6 negs. Unless it’s really bad, I spot it out just like if it was large-format film. You can use ink for this with a dry or nearly dry brush. Practice on a scrap of film to find just the right mix of tone and moisture that wont bleed. I use dried ink in a 6 well watercolor dish and a barely damp 000 brush. Apply it in a stippling motion. If it is really bad I make another neg.
Blowing it off with canned or compressed air shouldn’t be necessary, and may actually attract dust by creating a static charge.
Also, make sure that the paper path is clean and free of any paper dust that may have accumulated.