No escape from the labyrinth

Published:2011/7/28 21:13:00 Author:Phyllis From:SeekIC

Most lasers used in the manufacture or marking of boards generate hazardous dust and fume that should be controlled by an extraction and filtration system.

This is also true in hand or machine soldering application producing solder fume. The cost of ownership of these filtration systems in terms of replacement filters can be a concern for the end user but the new patented Labyrinth filler from Purex may just be the answer.

Extensive trials with laser manufacturers and long term research and development work with filter media specialists have resulted in the new patented Labyrinth filter that overcomes the disadvantages of current pleated paper and bag filter technology.

The Labyrinth filter is a radical departure from current ’off the shelf filters and has been specifically designed for filtration of laser fume. A conventional paper filter can only capture particles on a single thin face of media whereas the multi layered Labyrinth filler media is deep and graded and so has a much greater dust holding capacity throughout without affecting air-Row.




The greater dust holding capacity means that the end user does not have to change the filler as often and therefore laser downtime is kept to a minimum and because they buy fewer filters, the annual cost of replacements is much lower, in some cases over 10 times less. Further savings are made by the customer in shipping costs, as compared to bulky rigid filters which may be expensive to transport, the Labyrinth is small, compact and lightweight and is less likely to be damaged in transit.

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