This image was created as part of the <a href="https://meta.wikimedia.org/wiki/Philip_Greenspun_illustration_project" class="extiw" title="m:Philip Greenspun illustration project">Philip Greenspun illustration project</a>.
<ul><li><a href="//commons.wikimedia.org/wiki/File:HEPA_Filter_diagram_en.svg" title="File:HEPA Filter diagram en.svg">HEPA_Filter_diagram_en.svg</a>: <a href="//commons.wikimedia.org/wiki/User:LadyofHats" title="User:LadyofHats">LadyofHats</a></li>
<li><a href="//commons.wikimedia.org/wiki/File:HEPA_Filter_diagram_de.svg" title="File:HEPA Filter diagram de.svg">HEPA_Filter_diagram_de.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Rotk%C3%A4ppchen" title="User:Rotkäppchen">Rotkäppchen</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:The_RedBurn" title="User:The RedBurn">The RedBurn</a> (<a href="//commons.wikimedia.org/wiki/User_talk:The_RedBurn" title="User talk:The RedBurn"><span class="signature-talk">talk</span></a>)</li></ul>
2010-09-10 18:24
<ul><li><a href="//commons.wikimedia.org/wiki/File:HEPA_Filter_diagram_en.svg" title="File:HEPA Filter diagram en.svg">HEPA_Filter_diagram_en.svg</a> through <a href="//commons.wikimedia.org/wiki/File:HEPA_Filter_diagram_de.svg" title="File:HEPA Filter diagram de.svg">HEPA_Filter_diagram_de.svg</a></li></ul>