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Hi John, > Going through an old box of diving gear I came across a Cressi Sub full > face mask that my father had used, that was it. This mask has an oriface > that a regulator mouth piece or a rebreather mouthpiece nipple can fit > through and then the rubber mouth piece that goes in your mouth can be > attached inside the mask, therefor when you put the mask on your lips seal > around it and the hydrostatic pressure no longer goes into the mask but > into your mouth, just as if you had a half mask on with a standard > rebreather mouthpiece. The CS FFM also seals way under your chin. If it > leaks a little water in you clear it the same way you do a half mask. This is similar to how the ScubaPro FFM (which is what we've been using with the 'breathers from time to time) works. It isolates the eyes/nose compartment from the mouth compartment (so you can still exhale through your nose to vent the loop). The good news is that it has two ports for attaching comm gear. The bad news is that it probably costs more than $50. It's not quite as comfortable as the AGA, but it's not too bad. It depends on the shape of your face and the size of your nose. > > One cool thing about the CS FFM is its price, 50 bucks. The only draw back > is com gear, there is no port for com gear. I understand there are a few > more masks on the market with the same configuration, Scuba Pro and US > Divers makes one, maybe they're mask has a com port. > > At 200 feet I let my jaw go slack just as if I had passed out and I could > still breathe. I closed the surface valve on my mouth piece took off the > mask underwater, put it back on, cleared it, opened the valve and I was > good to go. Simple and cheap. > > Why wear a FFM? Insurance against drowning. Keeping your face warm in cold > water. > > > John > -- > Send mail for the `techdiver' mailing list to `techdiver@terra.net'. > Send subscription/archive requests to `techdiver-request@terra.net'. > Richard Pyle deepreef@bi*.bi*.ha*.or* ******************************************************************* "WHATEVER happens to you when you willingly go underwater is COMPLETELY and ENTIRELY your own responsibility! If you cannot accept this responsibility, stay out of the water!" *******************************************************************
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