Protech 662766217360 20 x 25" Dynamic Polarized Air Cleaner Replacement Media (3 Pack)
</br></br>
<div style="text-align:left">
<b>[Product Information]</b><br>
<ul>
<li>97% efficient at 3 microns</li>
<li>Efficiency increases as the media fibers load</li>
<li>Patented activated-carbon center screen is effective in removing odors</li>
<li>The disposable fiber media pads require only a few minutes to change</li>
<li>Media pads are generally changed every 3 to 4 months, depending on household conditions</li>
</ul>
</div>
</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/41OMEQcC2vL.jpg' noproxy></br>