@sueinmn - Hi Sue. I don't plan to go down a different path than what is indicated in the instruction that came with my handset. I'm using the Altera nebulizer handset along with the Pari altera compressor. Do you think I need to boil with distilled water or can I use tap water? Yes, they say use distilled water. Doesn't boiling kill bacteria or is there another reason for using distilled water? This disease really give you an education. Thanks Sue for your sage wisdom.