The concept is very simple. You insert your arm into the sleeve and then pump out all the air so the sleeve is air tight on your arm.
I have had a great experience with this product. Before using the DryCorp product, I had to wrap my arm in in Press'n Seal wrap and then tape the edges. This is both time consumer and tedious. But with this PICC cover I can put it on myself and feel confident that no water is going to be introduced to my PICC line.
After putting on the cover, I would move my arms in various directions to make sure that no air leaks into the cover. Sometimes I would have to start the process over because I had not entirely secured the cover, but never once did I have water contaminate my PICC dressing.
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