Allergen Suppression Technology. 6 times better filtration than a standard bag. Micro-Static Liner: Electrostatically charged prolyproplene micro fibers. Captures particles as small as 0.1 micron including many pollens, spores, bacteria, dust mites and allergens. Filter paper treated with BioClear to inhibit the growth of germs, bacteria, mold and mildew on the paper.