Our exclusive designed bottle rack guides the steam and hot air straight into the bottles. The dome lid circulates steam efficiently and has a heat-resistant handle.This process helps promote high efficient sterilize & drying. Also, special designed air rotator that helps increase the air flowing speed inside the chamber. This drastically decrease the air drying time and making sure steam gets delivered 100% to the right places. Excellent drying function via advanced technology prevents mould accumulation effectively killing 99.9% of germs and bacteria. And it will dry the items using hot air -- no leftover moisture after sterilizing and they're ready-to-use.