Is this a male?

I think it is, but this is my first time sexing a plant. I think those are pollen sacks in the pic but I don't know. It's my first grow. Does anyone ever keep the males growing away from the females? or do most people just throw them out? I'm afraid if I grow the males in the same room but in a different closet, that the males will still somehow fertilize the females.
 

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