How do you clean the CMOS sensor of the Canon Rebel

Situate yourself at a table with a bright overhead light or gooseneck desk lamp. Set your camera so that it is in sensor cleaning mode with the sensor exposed. (Some cameras require that they be plugged into AC power for this). Using either a hand blower bulb or a CO2 blower gently blow away any lose visible dust. If you have a jewler's eye loup this can be helpful in seeing what you're doing. Don't over do it with blowing, and don't let anything touch the sensor. Never blow into the camera with your mouth.

Next, remove a swab from its sealed pouch and place a couple of drops of Eclipse fluid on the pad. Starting at one side of the sensor glass gently but firmly wipe across the glass from one side to the other. Only lift the pad once you reach the far side. If you have a full-frame sensor camera and the pad isn't wide enough to cover in one pass, turn it over, wet it again with a couple of drops of Eclipse, and do a pass over the other half of the sensor, overlapping the first part slightly.

Use the blower to clean off any stray particles that may have floated in during cleaning, and close the shutter.