You can go to almost any hardware store and buy a $10-$20 air blow gun. It’s going to be loud when you pull the trigger, it’s not likely to be compliant with OSHA standards. AND, it’s going to cost more to operate than an engineered product like an EXAIR Safety Air Gun. I actually performed an Efficiency Lab test on such a blow gun recently. First thing I did was look for the manufacturer’s published data on air usage – there was none. Testing with our calibrated rotameter showed that it used 13.5 SCFM @80psig. This same customer had purchased a Model 1809SS-CS VariBlast Precision Safety Air Gun with our Pico Super Air Nozzle installed (and a Chip Shield, which made me really respect their safety game), which uses only 4.9 SCFM @80psig.

The VariBlast Precision Safety Air Guns cost them $136.00 each (2023 pricing). We used a US Department of Energy thumb rule which states that compressed air costs an average of $0.25 per 1,000 Standard Cubic Feet, and calculated that the blow guns they were using cost $158 annually, each, to operate 5 days a week, 52 weeks a year, with 3 hours of ‘trigger time’ a day:

13.5 SCFM X 60 min/hr X 3 hrs/day X 5 days/week X 52 weeks/year X $0.25/1,000 SCF = $157.95

Using the same math and substituting the 1809SS-CS’ air use, we see they only cost $58 per year to run:

4.9 SCFM X 60 min/hr X 3 hrs/day X 5 days/week X 52 weeks/year X $0.25/1,000 SCF = $57.33

And, again, since there are 14 of them, the customer is realizing an annual operating cost saving of over $800.00 a year!

At EXAIR, we’re in the business of making sure you get the most out of our products, and your compressed air system. If you’d like to find out what that might mean for you, give me a call.

Russ Bowman, CCASS

Application Engineer
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