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Perma Pure’s ME™-Series Moisture Exchangers at MEDTEC China

Proprietary technology dries or humidifies medical gas and breath sample streams
Toms River, NJ (July 9, 2008) – The latest technology from Perma Pure, designed to achieve moisture balance in medical applications, will be on display at MEDTEC China 2008, September 9-11, 2008, in Shanghai, China .  The ME™-Series Moisture Exchangers for breath sample dryers, filters and sample lines use proprietary Nafion technology to dry or humidify medical gas and breath sample streams, without altering gas composition and with no utility requirements. 

 Medtec

Moisture removal is a critical step prior to analysis in anesthesia monitoring, neonatal monitoring, asthma and respiratory care, metabolic testing, and capnography.  Excess water can block sample lines, damage analyzers and reduce the accuracy of analysis.  In supplemental oxygen systems, extremely dry breathing gases can cause patient discomfort. 

ME-Series dryers remove only water vapor from the sample, without removing any of the gases to be analyzed.  The antibacterial membrane tubing does not require power input for operation and there are no moving parts to fail. 

In either drying or humidifying applications, the ME-Series products seek equilibrium with room humidity, transferring water vapor into or out of the tubing in a stable, self-regenerating cycle.  Very low dead volume in the tubing eliminates drops in pressure.  With levels of humidification only reaching ambient conditions, there is no threat of rainout in the sample lines.  Unlike alternative technologies such as traps and filters, ME-Series products do not require regular monitoring and replacement. 

For more information on the company’s complete line of gas conditioning products, visit Perma Pure’s at MEDTEC China, booth 620.

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Selectivity

Nafion is not only highly resistant to chemical attack, it also exhibits highly selective absorption and transfer of compounds. Most substances are retained quantitatively. Although they do not attack or damage the Nafion tubing, some polar organic substances are absorbed and consequently lost. Ammonia and amines are also absorbed and lost to some degree. For retention information on specific chemicals, use the following pull down menu.