3M Filtrete Eureka DCF-4 &amp; DCF-18 HEPA Vacuum Filter， 1 Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Nullify</li><li>Imported</li><li>Filtrete Vacuum Filters are guaranteed to be free from defects in material and workmanship</li><li>Filtrete HEPA Vacuum Filters help trap 99.97% of all airborne pollutants 0.3 microns or larger， including mold spores， pet dander， grass and ragweed pollen</li><li>Filtrete media contains electrostatically charged fibers that work like magnets to attract and capture particles</li><li>Vacuum Filters should be replaced every 90 to 120 days for optimum performance</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41YQ0vg5rsL.jpg" noproxy>