I did a major cleaning today as it is hard to open up and air out during a Minnesota winter. I used Lysol Max - two spray bottles worth as it is anti biotic, anti fungal and anti viral- to clean the carpets, cat tree, and upholstery throughout the house. I then read original Lysol spray is toxic to cats and can cause liver failure!!! The Lysol Max does not contain Phenol and it evens says to use on pet beds. I'm still nervous. I have a 4 mo old and 1 year old precious sphynx babies.