2 - FilterBuy Particle Filters. Designed by FilterBuy to fit Blueair 500 & 600 Series Air Purifiers.
</br></br>
<div style="text-align:left">
<b>[Product Information]</b><br>
<ul>
<li>2 FilterBuy Replacement filters designed to fit Blueair 501, 503, 550E, 601, 603, 650E models and ALL Blueair 500 and 600 Series Air Purifiers.</li>
<li>Highly efficient HEPA filter easily essential for households with Children, Pets, Allergy, smokers and Asthma sufferers.</li>
<li>Captures 99% of harmful particles such as dust, pollen, and smoke down to 0.1 microns.</li>
<li>Dimensions: 13" x 9.25" x 2.75" inches. Replace every 3-6 months.</li>
<li>Air FilterBuy: Breathe Better!</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/51xioE2dIBL.jpg' noproxy></br>
<img src='http://ecx.images-amazon.com/images/I/414E0hg%2B9xL.jpg' noproxy></br>
<img src='http://ecx.images-amazon.com/images/I/317Pw8h0X9L.jpg' noproxy></br>
<img src='http://ecx.images-amazon.com/images/I/21%2BUtrLeqbL.jpg' noproxy></br>
<img src='http://ecx.images-amazon.com/images/I/41LYrYkKo9L.jpg' noproxy></br>