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LasVegas CH.com Sponsor Offline Episodic CH since 11 yrs old, now 50. Posts: 2020 north of the 60th parallel Gender:	Re: O2ptimask Kits Now Available! Reply #25 - Aug 21^st, 2010 at 2:50pm Went to the CH store today to order a larger mask and the item is out of stock, please advise when an order is available. thanks
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Clustermom CH.com Newbie Offline I Love CH.com! Posts: 12 Texas Gender:	Re: O2ptimask Kits Now Available! Reply #26 - Oct 25^th, 2010 at 10:41pm Do you use these with oxygen?
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LasVegas CH.com Sponsor Offline Episodic CH since 11 yrs old, now 50. Posts: 2020 north of the 60th parallel Gender:	Re: O2ptimask Kits Now Available! Reply #27 - Oct 25^th, 2010 at 10:45pm Yes, you hook up the mask and hose to the 02 tank.
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BigCoffinHunter CH.com Veteran Offline The man in black fled across the desert Posts: 204 x0\|Schenectady\|USA\|\|0\|0\|NY,New_York	Re: O2ptimask Kits Now Available! Reply #28 - Dec 23^rd, 2010 at 6:42pm Ordered mine today!
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Mike NZ CH.com Hall of Famer Offline Oxygen rocks! D3 too! Posts: 3785 Auckland, New Zealand Gender:	Re: O2ptimask Kits Now Available! Reply #29 - Dec 23^rd, 2010 at 10:54pm BigCoffinHunter wrote on Dec 23^rd, 2010 at 6:42pm: Ordered mine today! A great move as it works just great!
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BigCoffinHunter CH.com Veteran Offline The man in black fled across the desert Posts: 204 x0\|Schenectady\|USA\|\|0\|0\|NY,New_York	Re: O2ptimask Kits Now Available! Reply #30 - Dec 27^th, 2010 at 5:52pm Mask arrived! Now I hope I never need to use it! So what's the proper method, to let the bag fill first, then inhale? Do I exhale into the mask?
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Guiseppi CH.com Moderator CH.com Alumnus Offline San Diego to Florida 05-16-2011 Posts: 12063 SAN DIEGO, CALIFORNIA USA Gender:	Re: O2ptimask Kits Now Available! Reply #31 - Dec 28^th, 2010 at 9:02am Yes and yes! The reservoir bag fills up with 02, you take a big old hit, when you exhale. The valves let the exhaled air out. If you are emptying the bag faster then it can refill, increase the oxygen flow rate. Joe
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Brew CH.com Sponsor CH.com Alumnus Offline Posts: 14163	Re: O2ptimask Kits Now Available! Reply #32 - Dec 28^th, 2010 at 9:15am A tip: If you lift the mask away from your mouth and nose as you exhale, you won't be exhaling all the moisture from your mouth and lungs into the mask and valves. Your mask will stay much cleaner for much longer.
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BlueDevil

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I Love CH.com!

Posts: 52
Australia
Gender: male

Re: O2ptimask Kits Now Available!
Reply #33 - May 18^th, 2012 at 11:44pm

I have a couple of questions if anyone can help. I am not only considering an optimask for personal use for CH but also as a possibility for a scuba club which has oxygen units to provide O2 to divers with the bends (the highest possible O2 percentage is highly desirable for divers).

- theoretically I would presume this mask would supply much higher percentage O2 than a standard non-rebreather. Has any actual testing been done on percentage O2 supplied at various flow rates in comparison with standard non-rebreather masks?

- does it have any 'approval' as a medical device (I have no personal concern about this, but my dive club may want to know if it is an 'authorised' piece of equipment)

- the oxygen regulators that the dive club own unfortunately have a max flow rate of 15 lpm. If the breathing rate of an individual using it exceeds the flow rate is that problematic? (eg if there is not enough O2 in the reservoir bag will air be available without lifting the mask off?)

- do they ship internationally?

Gratefull for anyone's help with these questions. I must say they look like a terrific idea and I guess it illustrates the inventiveness of those in the CH community!

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Mike NZ CH.com Hall of Famer Offline Oxygen rocks! D3 too! Posts: 3785 Auckland, New Zealand Gender:	Re: O2ptimask Kits Now Available! Reply #34 - May 19^th, 2012 at 1:22am Not sure about the other questions but they certainly do ship internationally as I've got some here in NZ.
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BlueDevil CH.com Junior Offline I Love CH.com! Posts: 52 Australia Gender:	Re: O2ptimask Kits Now Available! Reply #35 - May 19^th, 2012 at 2:29am Thanks Mike.
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