AllerAir Airmedic Pro 4 "Dx" Superhepa Filter Replacement, 6" X 48""
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<b>[Product Information]</b><br>
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<li>Proprietary : Material Specifications Are in Accordance With Astm Standards for Evaluating Non-woven Textiles</li>
<li>Made in the USA and Imported</li>
<li>Made Out of a strong, flexible material that is wrapped around the carbon filter. Super-hepa is not Made of borosilicate fibers</li>
<li>Removes 99.99Percent of all particles at 0.1 microns in size</li>
<li>Super-hepa has no Polymer ring (which can off-gas) to keep it in place or protected</li>
<li>Super-hepa is Woven tightly and does not need Binders to hold it together</li>
<li>Material specifications are in accordance with ASTM standards for evaluating Non-Woven textiles</li>
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