“What is the true humidifying capacity range? The Best Buy website product description states the capacity is up to 500 square feet, but the product owner's manual provided by Crane (PDF download as well as actual Crane website) states humidifying capacity up to 250 sq. ft. My comparison shopping of different models depends on accurate information as to how large a room is covered. Is it actually only up to 250 sq ft? (and while it lists it above as "Red", I am inquiring specifically about the Penelope the Pig design model). Thank you!”