Our barn has screened windows to keep the flying creatures out and a fan for cross ventilation. During the winter the barn has artificial sunlight bulbs.
Once the kits are 5 weeks old they are brought up to the house a few times a week. They are safely exposed to dogs, cats, crying babies and all the other sights & sounds of a household.
My son with Alice
One of our Junior Does winning BOSV youth division at 3 months old!