When designing medical equipment, engineers can often feel like Goldilocks when it comes to humidity: there’s too much or too little—and their challenge is to make it just right. Too Much Humidity is a Frequent Problem The air (or a gas) can only hold so much water vapor. Depending on external factors like temperature and…
Nafion™ is a polymer that add/remove select materials, including water vapor, to a gas stream through a first order kinetic reaction (a chemical reaction). Because it’s non-porous, other molecules cannot pass through it. This unique property makes it ideal for medical applications such as removing water vapor from breath samples or adding humidity to gas…
Breath has lots of moisture. To see, just blow on a mirror and watch it fog up. Getting rid of the moisture on the mirror is easy: just wipe it off. Getting rid of moisture in a breath sample is more complex, but can be done with a bit of engineering and Nafion™ tubing. We…