A hair dryer comprises a housing, a fan assembly, a heating element, and a handle. Therefore, the present invention provides a packaging structure and method with a better hermeticity and a simpler process. 1-10 wt % of at least one aromatic phosphate and about 0. For example, a child dataset may inherit a data record from a parent dataset, which inherited that data record from a grandparent dataset on a dataset level, along with all the other records of the grandparent dataset.