Are you experiencing the same as I? Students, etc are not cleaning keys at all or using alchohol base cleaning products that are damaging the keytops or case parts?
How to clean them correctly? After the damage is done. Keytops are getting damaged as well as mostly music desks.
We put up hydrogen peroxide cleaning stations all around the school, but the ensemble rooms especially, are getting damage to keytops and music desks, no matter how many signs we put all around the school with many stations set up.
Now damaged, are they toast, or are they buffable?
It's just a guess, but my feeling is that the aerosols remaining in the room after several people have used it will be more dangerous than whatever is on the keys.
Are they wearing masks? And if so, are the masks of good enough quality to help?
We are using this product at UNC- Greensboro School of Music.