Hi liz440. My routine is similar to yours. I've got several extra neb kits so I do cleaning once a day. I soak for 20 mins in hot water with Dawn. Then I rinse and put them in microwave bag with small amount of distilled water for 1 min 30 secs on regular cook setting. When I get it out I let it sit for 5 mins and drain on clean paper towels. I was in the hospital with COVID last year for 8 days. I could not believe the respiratory therapist just hung the neb kit on the head of the bed to use the next treatment. I told her that is not acceptable and they changed them out afterwards. It's a shame to have to tell them about bacteria.