To disinfect and clean brushes and combs, just soak in mouthwash.
Wash hairbrushes and combs by soaking them for a few minutes in a sink of water to which has been added a tablespoon of baking soda and a drop or 2 of household bleach or other antiseptic.
To clean my combs, brushes, hair picks, etc., in the morning I fill a large empty Cool Whip bowl (or you can use any bowl not used for cooking) with hot water and dishwashing detergent.