I'm pretty new to photography and was wondering could an O2 hurricane canless air system be used instead of a rocket blower to remove dust from the sensor? I know that canned air has chemicals that san "spit" out onto the sensor, but the canless system doesn't have any chemicals, so I was just wondering.
NEVER NEVER USED CANNED AIR TO CLEAN A SENSOR OR A POWERED BLOWER! It is the just like putting your camera in-front of a sand blaster. It's not necessarily the the chemicals but the force that hits the sensor. Canned air will freeze the sensor and will more than likely cause major damage. Can-less air, is like a sand blaster.
I have always used a Giottos air blower and it always works. Yes it may take 30 minutes of messing with it to get the dust off, but I have never had anything that it didn't take off. (There are horror stories of the cheap knock offs blowing the rubber mold dust onto the sensor.)
I have had my D300 for just about 4 years - 90k+ clicks last I checked, D50 IR converted for 3 years, and the D800 for 4 months and have NEVER used swabs to clean it. I have always used a Giottos blower and has always been just fine. The occasional stubborn dust, I carefully use a loop with a q-tip and just touch the dust and never the sensor. Usually static electricity just pulls it off. Hold the camera upside down and blow out the dust. If it is oil (quite frankly I don't believe 90% of the recent "oil" comments, and believe it is just dust and less informed people just repeat the worse case scenario) but if it is oil, send it to Nikon & let them clean it.
I have read horror stories of people who have scratched their sensors from cleaning. From what I have seen, If you are asking the question, you have NO BUSINESS CLEANING IT YOURSELF. My local store will have sales on cleanings and it costs less than $40 not on sale. They said they average about 1000 a year. That's 3 a day from a trained tech, not some kid. I have read replacement front filters can reach the $400 mark depending on the damage.
Also note that if you read your manual, there is a "dust" reference option.