Hi! I live in CA where it is still 100 degrees at midnight. My coop has a small window and pretty big window (1 ftx1 ft) that is left open at night but I think the coop is still very warm. My coop has an arched ceiling so at the top, i have a small fan that just adds some air flow. they can put their faces up to it but it is not pointing right at them. Do you think a fan is ok? I don't want them breathing in dust but it is not hitting the shavings so there isn't any dust.