Do it in a dust free environment would be my most appropriate advice. Any sucking and blowing in a domestic environment involves a risk of just moving dust around and introducing dust from elsewhere.
I cleaned my sensor using a blower, but I did it in the bathroom. Tiled floor, no carpet, cleaned the room first, ran a cold shower for 15 minutes first to damp down any dust that was floating in the air. No problem.
Best advice on general guidance I've seen is:
http://www.cleaningdigitalcameras.com/
Duncan