Holmes HAPF21 Air Purifier Filter
<div style="text-align: left;"><strong>[Product Information]</strong><br>
<ul>
<li>Fits Holmes air purifier model HAP220, HAP221, HAP222, HAP223, HAP2234.</li>
<li>Removes pollen, dust, smoke particles, pet dander.</li>
<li>Filter should be replaced every 1-2 months for optimum performance.</li>
</ul>
</div>
<img src="http://ecx.images-amazon.com/images/I/41xlv%2BKRYaL.jpg" noproxy>