I emailed Pre Mac about the US Army website, this is their response.
I note that you have purchased a model MWP which is the military version of the civilian model Travel Well Trekker which would suggest that you are, or have, military contacts. Alternatively you could have been under the wing of Ray Mears and Woodlore who have historically sold our military models. Perhaps you could let me know where you bought your MWP as we are getting some examples of ex-military, time served and well beyond realistic shelf life Pre-Mac units finding their way onto Ebay and the like.
Re the situation with the USACHPPM report I can fully understand why you were disturbed by their comments. We are aware of this report and their assessment of 'commercial off the shelf' 'COTS' purifiers. We supplied samples along with extensive independent test data in good faith and in absolute confidence, over two years ago. We were horrified when this report was finally published as it seems to fly in the face of all the extensive testing which has been carried out over the years by some of the most renowned biological testing authorities in the world like the London School of Hygiene and Tropical Medicine who actually endorse our products and even Thames Water.
Equally these units are in service with some 75 different military organisations worldwide many of whom have carried out extensive biological testing and field trials of their own.(e.g. The RAF Institute of Hygiene & Tropical Medicine) I can also state categorically that in over twenty years of supplying water purifiers to these military organisations worldwide, including both US & UK elite Special Forces (SAS), we have not experienced one single case of illness attributed to, or even suspected of, arising from the failure of a Pre-Mac product to provide safe, clean, potable water.
It appears that USACHPPM have evaluated the units as 'filters' and not 'purifiers' which are clearly very different animals. They have based their assessments on what they perceive as generic types and similar technologies and not on any form of actual physical or biological testing other than referring to some US data based on a previous and long discontinued Pre-Mac model known as the FWP. They have also discounted pretty much all the extensive independent test data we submitted with the units. We can, with some degree of confidence, claim that the Pre-Mac unique and internationally patented purification process incorporated in your MWP has been more widely tested and evaluated than any other product purporting to provide potable water.
Needless to say we have challenged their findings and our Main Board Technical Director, who is a PhD qualified scientist, wrote to them before Christmas challenging their findings and while we have had an acknowledgement we are still waiting for a formal response.
I think in conclusion, I must say, you need to form your own conclusions regarding this long established and internationally reputed product. If you would like to discuss the situation in more detail please don't hesitate to ring me on the number below