Covid outbreak in Dad’s memory care - almost zero precautions

There are active Covid infections in my dad’s memory care facility and they are taking very few precautions. Surgical masks for staff that they wear below their nose, no isolation for residents, no air purifiers. Infected residents confined to their rooms but that’s it. They insist on communal dining. I’ve asked for N95s/kn95s but they said surgical only. I’ve asked for air purifiers in common areas. I don’t have a lot of money or I would buy the air purifiers myself.

What else can I do? He is so far testing negative. But he is very friendly and very social.