Yes there will. The exposure won't be as severe as it would if sprayed but there is still a risk.
Keep in mind that the nasties in 2K are absorbed through exposed skin as well, not just by inhalation.
In that case, I'd rather not take any chances and will get a mask set-up. May still roller it as I live on a farm with a public foot-path and wouldn't want to effect any of the animals or people.