A Brooklyn day-care center’s kids were rushed to a hospital yesterday after the building was filled with deadly carbon-monoxide fumes, authorities said.

Firefighters took two adults and seven children, described by neighbors as ranging from babies to toddlers, from the Harper’s Group Family Day Care Center in Crown Heights to Kings County Hospital shortly after noon. All were listed in stable condition last night.

The building was emptied after an upstairs neighbor complained of lightheadedness. Center owner Agatha Harper said the fumes could have come from the boiler, turned on just a week ago.