Board Thread:General Discussion/@comment-27392440-20160515150923/@comment-44061-20160517171355

He was also using a specific technique, id think it likely overrode whatever danger he might have had. Whats the point of 'absorbing' if its dangerous. I would also think they never really got into the specifics about how that concept works. They did make a point of noting that the quincy use bows (ranged weapons) so that they would be out of reach of the hollows. We also see Urahara's countermeasure that allowed the return of the stolen bankai's in the situation it was noted that they dont have the antibodies to fight hollows so its likely an internal thing.