No returns allowed in bathrooms. Exhaust fan, an operable window or connection to an ERV is required. Supply air is required if the bathroom has an exterior wall. As far as I know and remember.
Usually just run a 4" supply line to a basement bathroom and an exhaust fan c/w 4" vent
Man that song brings back great memories of Jr high and dancing with my girlfriend.
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The Delhi police have announced the formation of a crack team dedicated to nabbing the elusive 'Monkey Man' and offered a reward for his -- or its -- capture.