Check the listing for details. Interspiro spiromatic mask with breathing valve. Condition: New. Listed at 350.00 USD. This Interspiro mask was made between the years 1981-2004. The mask comes with a regulator (I haven’t tested this to see if it holds air or if its in working condition), a bag for everything, speach diaphragm x2, cover piece x2, two “breathing valves”, two “screen protectors” and a handbook with a test certificate. The mask fits snuggly on your face and you can easily adjust it using the straps on top. If you want information about it you can either ask me, or you can read the handbook that’s in both English and Swedish that comes with it. One of the breathing valves has been taken apart to allow air to come in without a tank and regulator. You can easily put it back if you want to, or you can change the filter to the other one. But, the one breathing valve that isn’t on the mask is partially broken as a piece broke off before it was in my hands. If you have any questions, feel free to message me!