tag:blogger.com,1999:blog-12905037.post-70719043752944205482008-05-08T23:08:00.000-07:002008-05-08T23:09:49.688-07:00<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://bp2.blogger.com/_0YUa1hyzaEQ/SCPqY-sGqgI/AAAAAAAAAJo/t64TTLnnzGA/s1600-h/air.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 223px; height: 334px;" src="http://bp2.blogger.com/_0YUa1hyzaEQ/SCPqY-sGqgI/AAAAAAAAAJo/t64TTLnnzGA/s400/air.jpg" alt="" id="BLOGGER_PHOTO_ID_5198256109781428738" border="0" /></a><br /> <p class="MsoNormal"><o:p></o:p>Changing the air filters in your heating and cooling systems regularly can cut 2 percent off of your CO2 output every year. <o:p></o:p></p> <p class="MsoNormal">Plus, it can make a big difference during allergy season, and is just plain good for your safety as buildup can be a fire hazard.</p>Adesnoreply@blogger.com