Cleaning & Safety Solutions can clean acoustic ceiling tile as well as the dirty air diffusers. We can clean the whole ceiling or just the diffusers and tile around them that appear dirty. The diffusers get dust and germ build up on them we can clean them. We use ceiltech solutions to clean you can check them out @ ceiltech.com The Ceiltech? Process Will improve the appearance of your ceiling. Will extend the lifespan of your ceiling. Will sanitize your ceiling. Will improve it's light reflective qualities. Will cost you 50% to 80% less than painting or replacement. Will not destroy acoustical value or fire rating, like painting. Will be applied around your schedule and without disruption to your business.