It depends on how the hair was airdried. Airdried hair should not be combed if it isn't dried smooth, otherwise too much hair can be broken off.
In one of the threads here (last year, I think) this was discussed and I experimented with my hair. I was told if I airdried in a rollerset, which I do anyway to smooth and "straighten" my hair, I could comb it after it had dried because it was smooth. I tried it and it worked! Maybe 2 or 3 strands in my comb.
I haven't continued this (for no reason) but now I know it's possible, only if the airdried hair is already smooth.
After detangling in the shower while rinsing off my deep conditioner (Humectress), I apply some leave-in - Headress or Biolage Leave-in Hair Tonic on my dripping wet hair and my comb slips through. I seal in the moisture with oil or serum and roll up each ponytail section (I do ponytail rollersets) on wet magnetic rollers (wetting them is a tip from Anky) and secure with pins. I airdry my hair overnight.
The next day, when my hair has airdried, it is very smooth and bouncy. I usually either braid it up for a braidout or make a bun or an updo style, without combing. But it can safely be combed, if desired. One of these days, I'll do some more experimenting with this.