Make sure you highlight the strengths of the company the actual you offer over rivalry. If you have pets, the ducts are likely to get clogged because with the hair. If you want to clean the right way, then might as well check out these cleaning materials each time you use them for cleaning it. http://Permafrostpublishing.com/__media__/js/netsoltrademark.php?d=Nlifelab.org%2Fbbs%2Fboard.php%3Fbo_table%3Dfree%26wr_id%3D974793