I received a Nuk steam sterilizer with my shipment of Cayston from CF Pharmacy. It is comparable to the Avent IQ sterilizer which I had already been using. I personally like the Avent model better because I am able to fit more neb pieces in it, and because it has a timer and keeps contents sterile for 6 hours...but they both do the same job of sterilizing. I then use the germ guardian to dry.