Fan type chemical diffusing apparatus

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.

1 . A fan type debugging apparatus for repelling and expelling a noxious or harmful insect with an active ingredient containing as its principal component at least one chemical having a vapor pressure of not less than 1.0×10 −4  mmHg at a temperature of 30° C. and effective to act as an insecticide or acaricide or to control growth, or to hinder bloodsucking, biting or eating behavior, of the insect, or to repel the insect, or effective to prevent any other damage by the insect, the apparatus having an active ingredient impregnated body or mass adapted to retain and release by volatilization said active ingredient, and including a fan type blower powered to be driven by a motor which is in turned by a battery, wherein said fan type blower comprises a fan having: 
 an air resistance f which when expressed by current consumption I 1  by said motor loaded with said fan divided by current consumption I 0  by said motor when unloaded with said fan, ranges not less than 1 but not greater than 17;    a size in a range between 20 mm and 100 mm in diameter; and    a weight in a range between 1.5 gram and 8 grams,    wherein values of said fan air resistance, size and weight are selected as aforesaid and further so that the current consumption by said motor loaded with said fan has a current value such that the ratio of a time period in which said fan can be driven by said battery to the capacity of said battery is not less than 5%.