These vacuum bags trap most microscopic indoor irritants and pollutants that trigger most dust related allergies or discomforts. These new micro-filtration anti-bacterial vacuum bags will inhibit pollen, dust mites, food particles, bacteria, mold spores and numerous respiratory irritants. This bag captures microscopic particles, germs and bacteria as small as 0.1 micron and offers 99.7% filtration. Fits all Sharp vacuums.