If a sealed plastic bag is filled with air, then unzip it and the air will escape. We apply this natural life phenomenon to this humidifier, which visually controls the amount of mist by adjusting the size of the opening. When we unpack our products, we often discard the inner packaging of this PE material. It is very necessary to think about "product packaging" in the whole product system. Therefore, the packaging of this humidifier itself is a part of the product. If the "packaging" is discarded, the humidifier will not work properly, which conveys the designer's goodwill for environment.