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More Products. Less Products. Add to cart More Info. Email Exclusives! Low cost dusters available at consumer stores can have a negative impact on worker safety and your product reliability.
As you can see, the aerosol can may be the same size, but the number of sprays for the money can vary widely. In other words, a heavier material may offer fewer sprays per ounce. No, this is a misconception based on old information. Dusters contained CFCs chlorofluorocarbon over years ago, but have since been replaced with materials that do not impact the ozone layer.
In North America, there are no commercially available aerosol dusters that contain ozone depleting propellants. They are popular in professional or industrial applications because of the safety advantages, especially when used on energized circuits. When there is the possibility of sparks or flames e. Each type propellant used in aerosol dusters have potential to produce a specific amount of force.
Chemtronics offers aerosol dusters with even higher spray force by controlling output through the valve and spray head. These provide an extra boost to push out heavier particles and anywhere more aggressive cleaning is required. Under high pressure, the propellant is mostly liquid, with the empty part of the call filled with vapor.
When you spray an aerosol duster, the vapors of the propellant are expelled. It also sprays with a very high force to dislodge stubborn contamination. Aerosol dusters predominantly come in a steel can with a plastic trigger sprayer.
It is possible for the sprayer to become charged from either handling or from the propellant being discharged, so may be a concern for cleaning sensitive electronics. The sprayer can be reused with refill cans that are sold separately. The advantage of the chrome sprayer is more precise spray control and ESD electrostatic discharge control. The evaporation of the liquid inside the can results in a drop in its internal heat energy, and it absorbs a large amount of heat from the surrounding air and environment -- in this case, the metal can.
When the liquid inside absorbs the heat from the can's metal body, the can cools down rapidly. As the expanding gas leaves the can, it also absorbs heat energy from the nozzle and straw, and anything else the gas comes into contact with. For example, if you spray a keyboard, you'll see a thin white layer of frost form on the keys briefly.
With prolonged use of the canned air, you might notice that the force of the air stream weakens over time, and the can becomes too cold to comfortably hold in your hand. The heat energy from the can has all gone into evaporating the liquid inside; when the can itself becomes cold, not enough heat remains to vaporize more liquid.
To remedy the "out of breath" condition, set the can down and let it warm for a few minutes. This restores the strength of the air bursts. The can carries a warning label telling you to avoid spraying onto your skin; the rapid absorption of heat can easily cause frostbite.
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