When You Need It & Where You Don’t

Moisture Control Matters

Whether you call it moisture or humidity, dew point or condensation. It can be essential. Often you just need it gone. In designing medical equipment, you need to control moisture. We understand the importance of moisture control at Perma Pure. That’s why for the past 40 years we’re worked to give you that control.

We are the exclusive manufacturer of Nafion™ Tubing, a highly selective permeation membrane that is uniquely suited to address medical equipment moisture control. Use it to REMOVE water vapor from breath samples prior to analyses or HUMIDIFY therapeutic gases like oxygen and nitric oxide. It’s all about control.


Nafion™ Polymer

Perma Pure’s products are powered by our Nafion™ Polymer. It selectively transfers moisture across its membrane and can remove up to 90% moisture from a wet gas stream. Or add water vapor into dry gas stream.

Did you know that Nafion™ tubing can prevent external water-borne bacteria from contaminating the gas stream inside the tube? Learn more about the magic of Nafion™ polymer.


We have developed a team of experts to help you solve your humidity challenges. Our engineers despise uncontrolled condensation and take extreme precaution to ensure it doesn’t happen to you. Our full fledged Production and Quality department have all necessary checks and balances in place to manufacture products for medical applications.  

Learn more about Perma Pure’s ability to develop products for the medical industry.

Whether you need an answer to a technical question, or the services of our engineering staff for a new design, Perma Pure stands by ready to help.

While Perma Pure’s ME series moisture exchange Nafion™ tubing has 510(k) approval for drying, we do not have FDA approval to sell a humidification device with Perma Pure labeling.