Check often for exclusive offers, contests, product alerts and more. All rights reserved. Privacy Statement Accessibility. Aerosol dusters contain one of these propellants: HFCa 1,1,1,2-Tetrafluoroethane, CAS — This is the same material generally used in modern air conditioning systems. It is nonflammable, making it popular in professional or industrial applications because it can be sprayed on energized circuits.
The negative of HFCa is its environmental impact. The trade-off is safety, since concentrated HFCa is flammable, so could light if exposed to an ignition source e. The risks are highest when spraying in an enclosed area, where vapors could collect, or if turning the can and expelling liquid.
HFOze trans- 1,3,3,3-Tetrafluoropropene, CAS — With the greater focus on global warming, new technology has become available for blowing off dust and dirt. Because it is newer technology that has not been widely adopted by larger volume applications like air conditioning, it is relatively expensive compared to the other alternatives.
As usage increases, and regulations force the issue, prices are expected to decrease. CO2 is very high pressure, so generally comes in small metal cartridges like used in air guns. These cartridges plug into a spray system, and are replaceable. For CO2, the spray force diminishes as the cartridge runs out, so the 1st half of the cartridge is more useful than the 2nd half.
For the same price-sensitive reason, HFCa is commonly used in dusters available in consumer retail stores. Concentrated HFCa is flammable, so could light if exposed to an ignition source e. This drives industrial users to more commonly spend the extra amount for nonflammable HFCa. Purity can be questionable — Industrial buyers rely on trusted industrial brands because the quality is closely controlled, especially when the duster is used on critical or sensitive electronics.
This exact temperature doesn't really matter, because all the excess heat will escape when the can cools down to room temperature, before you let the gas back out. But in short, that's why gas comes out cold from a gas duster!
Yes, if you compress a gas, it heats up. Then it gives its heat away to its environment, and becomes compressed gas at room temperature. If you then release the pressure, the gas cools off to below ambient temperature as it expands. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Learn more. Why does a gas duster make cold? Ask Question. Asked 1 year, 2 months ago. Active 1 year, 2 months ago. The frost that forms on the can and nozzle comes the condensation of water vapor in the surrounding air.
Ryan Maxwell began his professional freelance writing career in He is a former U. Army military police officer, as well as a published poet and photographer. While attending Finlandia University, Maxwell majored in criminal justice with a minor in English studies.
Ryan is also very skilled in computer maintenance, upgrade and repair with almost 20 years of experience. How Does a Fireplace Blower Work? How to Measure Carbonation Levels. How to Make a Coke Can Boat. As a matter of fact, inhaling too many of these vapors can lead to negative health effects.
Compressed Air Duster is most commonly filled with the following propellants:. Customers looking for the lowest price often look to consumer retailers. Consumer duster is designed to be as cheap as possible, sometimes imported from outside the US.
There is a misconception based on old information that dusters hurt the ozone layer. To achieve the optimum force from a can of duster, spray a short three to five-second blast at room temperature.
When an aerosol duster is sprayed continuously, it acts as an efficient heat sink and will cool down. This lowering of the can temperature also lowers the internal pressure of the can, which will greatly decrease the generated force.
As the above details demonstrate, care needs to be taken even when choosing an everyday consumable like a duster. Reach out to us or your distributor for help deciding which duster is right for your application. Americas English Spanish. My account Login View Cart 0. Compressed Air Duster is most commonly filled with the following propellants: HFCa — Nonflammable, most common for industrial applications when spraying energized circuits because of the risk of a spark lighting a flammable material.
It is flammable, and will ignite when concentrated i.
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