Long period wear not as comfy as you'd like...
It does the job that it is designed to do.  It's a little bit hard to put on until you practice some because you have do it behind your head and there are multiple attachment points.<br /><br />When you are using it for short period of time, it's very comfortable.  When using during longer periods, it made the straps of the mask pull down on ears.  All day wearers should expect to be making adjustments to keep the mask comfortable.  It was definitely a tighter mask fit for regular masks, and made the KN95's that were already tight much tighter.
Rating: 4 stars