Rockfon’s Hygienic Plus ceiling tiles have low particle emissions that contribute to air cleanliness and fulfill requirements of cleanroom classification of ISO Class 5. The tiles comprise water-repellant stone wool that prevents the growth of MRSA and other bacteria. The pre-treated tiles can be disinfected by steam cleaning and can be vacuumed with a soft brush attachment. Applications include laboratories and clean rooms, sanitary areas, kitchen and food-preparation spaces, and locker rooms.