Dusting Computer Components
       With Compressed Air

Dusting computer components continues. Page one about dusting computer components is here.

All of these types of compressors come complete with a discharge coupler installed at the compressor air outlet, into which you will plug your connector for your hose.

If the hose is not part of the kit that came with your air compressor, you will need to acquire one, along with a connector that fits the coupler on the compressor. You will also need a blow gun to turn the compressor dusting of air flow on and off as needed.

Water Can Be An Issue
        When Dusting Computer Components

All compressors generate water as a by-product of compressing air. This water will ultimately exit the tank and blow onto your compupter components if it is not removed beforehand.

You will want to use a desiccant type air dryer , installed downstream from a general purpose air filter, to remove water vapor from the air stream.

Why Not Just A General Purpose Filter?

A general purpose compressed air filter will remove much of the free water, but virtually none of the water vapor that can condense in the hose and create water droplets that land on your computer equipment.

Two Other Potential Problems

Aside from having to deal with water generation, I see there are two other problems that you may have with a portable compressor.

Though they are portable, the ones with the 2-3 gallon tank are a bit bulky, bulky enough to make transporting them, along with your other equipment, a bit problematical. Go to your compressor store and see what I mean.

The bigger problem from my perspective is noise. Cheap compressors are noisy. Again, visit your compressor store and ask them to plug in the model that you are considering to see if you can handle the noise level. Let the compressor run until it reaches its cut-out level and shuts off, so you can hear the unloader valve work too, as that adds another noise element.

Warranty & Service Issues On Portable Compressor

When you buy your compressor, find out who the store uses to fix that brand of compressor under and out of warranty. If they do not have a repair depot, do not buy a compressor there.

You will, eventually, need compressor repair and there is no repair depot familiar with the brand, you may have a problem getting it fixed.

Solution 2 - Portable Air Tank

As you point out in your posting, yes, you can get an air tank to take with you on a job, and one 5 gallon tank pumped up to 150 PSI (or whatever the maximum safe pressure level is for that tank) and being used at 15 PSI or so, will likely provide all of the air you would need for a number of computer component dusting projects.

Filling The Portable Air Tank

You either buy a compressor and fill the tank at your office before you go on the road, or stop at your garage on the way to the job site and fill it up at the tire fill station.

Getting a tank filled at a garage is becoming more difficult, as gas stations appear to be getting out of the free-compressed-air business.

When you buy your tank, you will need to have the store explain to you how you fill the tank. There are various adapters available.

Using The Tank Air For
        Dusting Computer Components

The portable tank will come equipped with a hose of sorts. The fitting on the end of the air hose might be a tire fill chuck.

This won't do for you in trying to dust off computer components.

Air Fittings You Will Need

You will need to get compressed air out of the tank (or out of the compressor), into a hose, and connect a blow gun to the end of the hose so that you can turn blow-off air on and off as needed.

You will also need to connect the desiccant air dryer into the circuit.

You can do this by cutting the hose and adding fittings to screw into the dryer, or simply add the dryer at the end of the hose just before you add your blow gun. You can plumb the dryer with couplers and connectors or the appropriate fittings that fit the dryer ports.

The best thing to do is to visit the following pages for complete information on couplings, connectors, and fittings:

The compressor will come equipped with a coupler on the discharge pipe from the tank.

You will need a connector to insert into that coupler, an air hose to be attached to the connector, a coupler for the other end of the hose, a male connector that screws into your dryer port on the supply side, and perhaps a male coupler that threads into the other side, and a coupler that connects to the connector in the blow gun. And don't forget the blow gun itself.