David C.
Cannot breath through the mask
I purchased two masks and filters. They took nearly a month to arrive. When received, I followed the instructions for set up, but found it incredibly difficult to breath through the mask and found myself gasping or air when I took it off. I have not used it at all since. Unfortunately these are non-returnable, even though I have not opened the second. Over $100 lost in total. Buyer beware.




