1.0TFI Aachen GmbHhttps://tfi-aachen.de/en/adminhttps://tfi-aachen.de/en/author/admin/rich600338<blockquote class="wp-embedded-content" data-secret="QQ051Xevri"><a href="https://tfi-aachen.de/en/project/pureair/">PureAir – Development of long-term stable filters with low pressure loss based on electrically conductive tufted structures for use in room air purifiers</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://tfi-aachen.de/en/project/pureair/embed/#?secret=QQ051Xevri" width="600" height="338" title="“PureAir – Development of long-term stable filters with low pressure loss based on electrically conductive tufted structures for use in room air purifiers” — TFI Aachen GmbH" data-secret="QQ051Xevri" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://tfi-aachen.de/wp-includes/js/wp-embed.min.js </script> In the PureAir project, we have developed three-dimensional textile filter structures for room air purifiers together with IUTA. The aim was to combine high separation efficiency with low pressure loss with absence of ozone, long-term stability and washability. For this purpose, pile structures with combinations of insulating and electrically conductive materials were developed. By applying an electrical voltage to the material, the electrostatic deposition should be permanently maintained. The small distances between the fibres mean that particles with low electrical mobility are also separated.https://tfi-aachen.de/wp-content/uploads/2024/03/PureAir1.png