filter 38 it should be clearly understood that substantial benefit could be derived from an alternative embodiment of the present invention in which the filter 38 is differently oriented without departing from the scope and spirit of the invention referring to fig1 and 5 6 a in the preferred embodiment of the present invention a housing 42 shown in fig5 6a is used to contain the fan 20 shown in fig5 6a the humidifying chamber 26 shown in fig5 6a and the filter 38 shown in fig5 6a of the present invention additionally and in the preferred embodiment the air outlet end 16 shown in fig1 of the air collector 12 shown in fig1 is coupled to the fan inlet 18 shown in fig5 6a of the fan 20 through an inlet hole 44 shown in fig5 and 5a in the housing 42 to allow the fan 20 to receive the air collected by the air collector 12 furthermore and still in the preferred embodiment the housing 42 will also define a plurality of exhaust ports 46 shown in fig5 6a to allow release of the air expelled through the filter 38 back into the surrounding environment however it should be clearly understood that substantial benefit could be derived from an alternative embodiment of the present invention in which the housing 42 is differently designed in which only some of the depicted elements of the invention are housed by the housing in which additional elements of the invention are housed in the housing or in which no housing 42 is used at all without departing from the scope and spirit of the invention also in the preferred embodiment the air outlet end 16 of the air collector 12 is hermetically sealed to the fan inlet 18 of the fan.