HOW IT WORKS

DEMCiflex Computer and Electronic Dust Filters fits over the air intakes of your electronic or computer equipment by way of a built-in magnetic frame. It was designed to fit on the outside of the case and needs no screws, tools or special skills. The design allows everybody to use it no matter what their skill level. No need to open the case or undo anything at all.

The intake vents we refer to are the grills or ventilation holes in your computer's case where cooling air enters the case. Some of these vents may have fans mounted behind it to direct the airflow in any specific direction and others are unfanned.

To determine which vents are intakes we suggest making use of a sheet of paper. With the computer or electronic unit switched on and running, loosely hold a sheet of thin paper in front of every vent opening or grill. If the sheet moves closer to the case and get sucked against it, then you would know that this vent is an intake vent and needs to be filtered. Choose the filter(s) that would best cover that opening.

Dust can however enter the case through a myriad of other openings in the case like Optical Drives,USB and other ports that will be very hard to filter. The solution is in setting up your system to be positive pressure and to filter the intakes. In short this means that more air must enter the case where it can be filtered so that the higher pressure inside the case will leak out of every crack and port in the casing so stopping dust from entering there. To read about how to achieve this please see our section on performance/positive pressure.

DEMCiflex Computer Air Filters fits by way of a magnetic frame that is part of its structural design. This would adhere directly to the case and in the event that the case is non-ferrous (it has no iron in it's composition so that a magnet is not attracted to it) we supply you with a peel and stick magnetic frame that is fitted onto your PC case, around the air intake area. DEMCiflex Dust Filter will attach to this frame, making it easy to remove and clean when necessary. We also offer free Filter Alarm Software that will alert you when the filter needs cleaning.

The mesh that acts as filter will separate dust and debris from the cooling air without adversely affecting or restricting the flow.

WHERE TO USE DEMCiflex FILTERS

Although DEMCiflex Dust Filters are mainly used for keeping dust out of computer equipment,
it may be used to protect all electronic devices from the ingress of dust and dirt.
This includes:

Computers, UPS's and printers
Telecommunication devices and cabinets
Any size U rack mounted modules and cabinets
Audio-visual devices and studio equipment
Projectors and cinema equipment
Home and professional sound equipment
Televisions and home entertainment devices
Satellite Decoders
All industrial electronic equipment
All electronic laboratory equipment
Mig, Tig and laser equipment
Medical electronic equipment
Base station amplifiers and receivers
Household and workshop electronic devices and equipment

HOW TO USE DEMCiflex FILTERS

Here is a QUICK GUIDE to using DEMCiflex Filters

• Switch on the unit that you want to protect against dust
• Using a thin sheet of paper, determine where the air intakes on the unit are situated. Hold the sheet lightly and run it along the outer surfaces of the case. Pay special attention to where ventilation holes and fans are situated. If the sheet gets drawn towards the case it will indicate that air is flowing in that direction and thus gets drawn into the case. Take note where these intakes are situated, as it is these intakes that will need to be filtered.
• Measure the size of these intakes as indicated in the figure.
• Look on the chart by clicking here to determine which DEMCiflex Filter will cover the whole intake vent.
• Make sure that this area is made of a ferrous metal by testing it with a weak fridge magnet.
• If it is non-ferrous, apply the peel and stick extra magnetic frame around the vent as described lower down on this page. The filter will then adhere to that.
• Install the free Filter alarm software that can be downloaded.
• Keep an eye on the filters to determine how regularly it needs cleaning. Set the alarm accordingly.
• If the filters get really dirty it may be cleaned by setting it down on a flat surface and gently brush it with a small brush (toothbrush is ideal) and soapy water. Rinse under tap and dry thoroughly before refitting it to your unit.

DO NOT DO THE FOLLOWING
• Fit DEMCiflex PC Dust Filters over exhaust vents.
• Expose DEMCiflex PC Dust Filters to strong magnets as this will demagnetize the built-in magnet or weaken it. Exessive heat will tend to do the same.
• Do not bend DEMCiflex PC Dust Filter sharply.

Look on the chart by clicking here

NON FERROUS ENCLOSURES

Xtra Magnet

The extra magnets that is supplied with the filters (optional extra) are for use on non-ferrous cases like those made of aluminium or acrylics. If the area where you want to fit the filter or the casing of your equipment is non-ferrous, please make sure to include these in your filter order. Most companies will include and sent it as a unit, but make sure when you place your order.
To fit the extra magnet to your case please consider and take into account the following points:

• The magnet has self adhesive on one side that can be peeled and stuck to most surfaces.
• Before the backing is peeled off fit the magnet to the case with the backing paper side towards the case. This is the way that it will be fitted and is especially important where the filter is not symmetrical. A good tip is to fit the magnet to the magnet on the back of the filter that will be used when fitting it to the case. This way you will be sure that it will be fitted correctly.
• If necessary use a pencil or masking tape create register marks on the case to help you with alignment. These can be removed once the extra magnet is fitted
• Clean the area where the filter will be fitted to make sure the adhesive on the back will. adhere well to the case. Your magnetic DEMCiflex Dust Filter will adhere to the magnet.

You may ask why not just stick the fillter to the case? The reason is that DEMCiflex Dust Filters are re-usable and it was designed to be make cleaning of the filter as easy as possible as this operation could be more frequent than expected, depending on its location and conditions.

ALIGNMENT

Please note that the magnetic poles on the magnet are arranged in a linear pattern and that the magnet on the filter will only hold well to the case magnet when these patterns are aligned.

To align the magnetic poles - rotate the filter until you feel it sticking to the extra magnet that was fitted to the case. This is especially evident in the case of round filters and has to be considered before the extra case magnet is applied for filters with motives or logos printed on it.