This makes fine filtering of Mr. C's testimony — separating the admissible from the inadmissible — more challenging. (holnesslawgroup.com)
Their job will be to survey for cells that might collect on fine filters sent down the bore hole. (sciencenews.org)
Fine filters remove many common allergens and asthma triggers, such as pollen, mold spores, smoke, smog, bacteria, and dust, promoting overall health. (zehnderamerica.com)