This is the first stage of filtration for any junior size Austin Air purifier. Its cotton weave traps particles you can see without a microscope, like dust and pet hair. Baby's Breath Junior pre filter replacement captures light odors, chemicals and smoke.
Black pre-filters are for the following coloured units: Blue, Black.
White pre-filters are for the following coloured units: Sandstone, White, Baby's Breath Blue and Pink.
Compatible Models: HealthMate Jr, HealthMate Plus Jr, Allergy Machine Jr and Baby's Breath.