Traps 100% of dust mites and their eggs. Traps 99.98% of ragweed and common grass pollens. Plus filters a wide range of airborne particles including many pollens, spores, and other discomforts Improved electrostatically charged liner anhances the capture of extremely fine particles.
We live on a farm in the dustiest part of Central California. I have 6 children, 2 dogs, 2 cats and wood floors. These bags are the only ones I will buy any more. I still need to change them fairly frequently, when they are maybe an 1/8 full, but they hold in so much more than any other bag I have tried. It is incredible.
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