Making minor adjustments to Ziena and 7eye AirShield can make a big difference to the comfort of fit and the effectiveness, whether you are using them as moisture chamber glasses or for keeping out wind, dust, and pollen.
We have created a short set of user instructions to help you decide whether to make these adjustments and how to do it.
The instructions are in a PDF that you can view, download and print. We hope that you will find them useful.