As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI FLIGHT 2203 CABIN FILLED WITH A FINE MIST, PASSENGERS EYES WERE BURNING AND THROATS WERE IRRITATED. BOTH BLEEDS ON MAX FOR OVER TEN MINUTES. MAINTENANCE FOUND HYDRAULIC LEAK UNDER LAV FLOOR SPRAYING A MIST. ALSO, FOUND AIR DUCT SPLIT IN MIST AREA CAUSING MIST IN CABIN. REPAIRED HYDRAULIC LINES AND REPLACED DUCT. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.