Q: What is actually inside the duster can, isn't it just air?
A: No, computer cleaning dusters are actually a member of the aerosol family and use a propellant to deliver the pressurized blast you use to clean your computer and other household components. Therefore, the pressurize blast you use is actually a mixture of the gas vapors and air.
Q: Are the contents of the product flammable?
A: The Dust-Off brand offers two types of products: General Use and Special Application, while they function the same, the contents are different.
In the General Use Dusters, difluoroethane or 152a is the liquefied gas used as the propellant for generating the pressurized cleaning blast. The product is not flammable in accordance with flame extension tests outlined by the Consumer Product Safety Commission, however, under certain extreme circumstances it can be ignited.
In the Special Application Dusters, tetrafluoroethane or 134a is the liquefied gas used as the propellant for generating the pressurized cleaning blast. This product is 100% non-flammable and is used in sensitive environments like laboratories where the blast may be dispensed near a Bunson burner.
Q: Why shouldn't I tilt or shake the can during use?
A: The reason you shouldn't tilt or shake the can is because in doing so you would cause the liquefied gas to be dispensed in its liquid format, which if it came in contact with skin could cause frostbite; and if it comes in contact with computer components could freeze them or discolor the plastic. As you use the product you'll get familiar with just how much of a tilt you can provide without delivering the liquefied propellant. As you do so, always test on something that can't be damaged.
Q: Why does the can get so cold when I use it?
A: Inside the can is a liquefied gas that is "boiling" building up pressure waiting to be dispensed when you pull the trigger. This "boiling" point actually occurs at sub-freezing temperatures, therefore, when you pull the trigger to release the pressure you are feeling the result of that "boiling". As a result, the product will lose effectiveness briefly until the can reaches room temperature again.
Q: Can I use Dust-Off to clean the inside of my computer?
A: Yes, you can. In fact when computers were in their infancy it was technicians who identified this useful application. HOWEVER, you need to be cautious of the fact that if the product is dispensed in it liquid format (as a result of too severe a tilt in the can or not clearing the nozzle) you can damage your computer components by freezing them. It is always best to ask a certified technician for advise before doing it yourself if you are a first timer.
Q: Can I use this to clean out my paper shredder?
A: Absolutely not! This is a situation where the misconception of the products contents can be hazardous. Remember, a duster contains a gas, which sprayed into an enclosed or confined space will accumulate. In the case of a paper shedder this is exactly what happens. As such, the gas is now exposed to a spark producing piece of equipment - the shredder motor - and the result is what you would expect - a flash or small flame. This usage "no-no" also applies to using it to clean out under a refrigerator or washer. Such applications are not advised.
Q: What is the pressure of the blast delivered by the product?
A: At normal room temperature a Dust-Off duster delivers approximately 60-70psi.For further information on the operating principles of our products please check the following in site links: