ResproPower Valve (Set of 2)

Open package, not new

My husband has asthma that can be triggered by the cold. The weather being what it has been lately he has been using it often. He had lost one of the covers off the mask and asked me to find replacements. These were the right ones and now he's back in business.

These are a necessary part of the mask. Under normal use they will last a long time and can be washed and don't easily fail. They are part of a mask that forces air through the filter.

It's a spare for a mask. I bought thinking to fix the problems related with steam for my glasses, but doesn't fix it.