A air blower helps with the more recent Canon sensors, dust doesn't stick to them as well. I will wet clean a sensor if it has gunk stuck to it, but thats not happened to me for several years now. Canon always uses the pec pad method, no liquid. This has resulted in several complaints about sensors still dirty after cleaning but thats their method. I bought some pec pads, but they leave the sensor dirtier that before, obviously bad ones. I've also had bad pre moistened sensor swabs, so I start with dry ones and add a tiny amount of eclipse.
I'd get a Artic Butterfly if I needed frequent cleanings.