No, I take the males branch out the bloom area.
At that point not much light is needed, so even a window ledge will work or a cfl.
Males drop pollen as early as 10 days into bloom.
He gotta bust that load early she gets to making them offspring with enough time for them to develope.
When I go in with a model paint brush, I turn off all fans including the extraction fan so there's no current and also before lights on.
Then with a SLOW and steady, I paint the pollen onto my selected branches.
Wait about an hour at most and then mist them with a water bottle to kill any rogue pollen, or don't mist and maybe get a few scragglers here and there in the rest of the grow.
A few extra seeds here and there doesn't bother me since I don't sell but give instead to a select few.
I do this when she has 6 weeks left before harvest because she needs 4 - 6 weeks to make enough VIABLE seeds.
At harvest time I trim, hang dry and cure as usual.
After at least a 2 to 3 week cure, I start smoking and collecting seeds as I come across them when I pack bowls ! lol
A grinder can be used too, but careful not to crush the seeds.
flippin switch anytime now huh? Happy 420!!