Abstract: A fan type chemical diffusing apparatus includes an apparatus main body having an air inlet and an air outlet, a fan type blower disposed in the apparatus main body, and an active ingredient impregnated body or mass for containing an active ingredient. The fan type blower includes a fan casing, a motor, and a fan including a rotary disk and a plurality of blades fastened to a peripheral portion of the rotary disk and provided with a hollow space that is on an interior of the fan with respect to the blades. The fan type blower is operable to send air from the air inlet through the hollow space and out through the air outlet.

Abstract: Disclosed are a chemical carrier body capable of volatilizing a chemical stably for an extended period of time, a receptacle for retaining the chemical carrier body, an indicator adapted for displaying a degree of consumption of a chemical contained in the chemical carrier body, and a chemical heating, volatilizing apparatus adapted for heating the chemical carrier body.

Abstract: A fan type chemical diffusing apparatus is disclosed which enables an apparatus main body, a chemical receptacle and a power supply housing to be made independent in volume from each other and which makes it possible to readily establish an amount of retention of a chemical relative to a rate of airflow produced by a fan, and a length of time period for its service. Disclosed also is a chemical receptacle that prevents chemical impregnated carrier particles from being seized in a space between the end face of the receptacle main body and a lid body, as well as a clip type fastener by which the apparatus can be fastened firmly to an object regardless of its thickness.

Abstract: The present invention is directed to novel purified and isolated mite allergens possessing mite allergen activity with a molecular weight of about 94,000, about 40,000, about 16,000 or about 14,000 as determined by SDS-PAGE, which can be isolated from extracts of mite, and to a process for producing such mite allergens. The purified and isolated mites allergens of the present invention are useful as a pharmaceutical and a diagnostic composition for mite allergic diseases.