This is the ultimate in advanced plasma discharge design. All four do the same wonderful job of helping you avoid air pollutants wherever you go. Wein Products has pioneered this technology and we have been imitated but never duplicated in features, benefits, and safety . We make the finest wearable air purifiers available. We rejected add on features such as humidifiers and air quality monitors years ago because they create more problems than they solve.
Germs love humid air.
In fact they can't live without it. Airplanes, germs and breathing contaminated water vapor are a potentially toxic mixture. Instead respiratory specialists advise you to drink plenty of water on a flight. Don't breath in contaminated water from a humidifier on a wearable air purifier. We have hundreds of air travelers who have informed us that our incomparable Air Supplies work wonderfully well as is.