Todd@RUPES
Just a regular guy
The junkman over on youtube has a video abut this very subject. Worth the watch.
The Air Force Master Blaster vs. the Electric Leaf Blower - YouTube
While it is in an interesting watch it is hardly definitive. There are many far more experienced and knowledgable detailers who have used both a leaf blower and a master blaster, and almost without exception, chose the Master Blaster.
I used a leaf blower for the longest time (and it is certainly a cost-effective approach). However, the option to use filtered air is much better.
We have all seen the sand blasting effect of driving a car on the expressway at 65-80 mph. Over time the finish (particularly the front bumper, mirrors, and lead edge of the hood) will appear to have 1000s of pin holes caused by debris blasting across the finish at speed. Now the effect isn't noticeable the first time you take your pride-and-joy on the freeway, but it quickly adds up.
Blasting unfiltered air across your paint at 200 mph is, over time, going to sand blast it.
On the flip side if you are a professional detailer, using filtered air is going to help protect the finish of your client's paint, which is something that will help you stand out from your competition. Additionally, if you are an enthusiast who wants to maintain their vehicle in the best possible condition, the same applies.
Does a leaf blower work? Yes, and it works well. Is it the best option? No, not even close.