Precise_Flight

Quote: 201Pilot I've never flown with supplemental oxygen, but have looked into portable systems. Are there significant differences between the different manufacturers systems? If so, what are they? All portable systems are fairly similar. The bottles are the same, and regulators are all fairly similar. The major differences will be flowmeter styles and seat back harness and carry case (if provided) We have really nice 2 and 4 place systems. They can be viewed here https://www.preciseshop.com/proddetail.php?prod=210N0010-1_210N0020-2

Quote: jasonwojo Anyone have a good source for the Scott style fittings (new or used) that work in the factory installed O2 systems of our Mooneys? My bag of cannulas/masks has come up missing and I need to rebuild. I appreciate any help...Jason

I would still guess your cannula to be suspect. PM me with your name and address and I will be happy to send you a new one at no charge.

I can discuss this with you via telephone tomorrow if you'd like. I can be reached at Joe 541-382-8684

If I had to guess I would narrow it down to 2 things. People that tend to talk a lot will usually find that they have trouble keeping their saturation up when using a cannula. myself included. My other guess would be the cannula. You are equipped with an altitude compensating regulator on your fixed oxygen system. You were able to determine that it was functioning properly by way of the floating ball. You were also able to determine that you are getting enough flow out of the flow meter since the ball was floating to your setting. Even if it was leaking between the two you were still metering the proper amount of oxygen. That would leave me to believe you may need a new cannula. The moustache style Oxymizer Cannula has the two bladders in the nasal section. As you are exhaling, some of the constantly flowing oxygen will store in the bladders. Over time the bladders will start to dry out and begin to crack. You can't always see it but it happens. When it does, the oxygen will leak before you have a chance to breathe it in. If it’s not old it could still be leaking. If you purchased it recently I can look up your record, and I'll ship you a new one out if it's in the last year. Cannulas should be replaced every 2 years or 240 hours regardless of use.

Hi everyone. I am Joe with Precise Flight, Inc. We manufacture oxygen systems for OEM’s as well as portable and STC'd fixed oxygen systems. Some very good points have been made in this thread. You should always carry a pulse oximeter any time you fly. They have come down in price pretty dramatically in the past year or so. You can purchase a new Nonin brand unit for $99. Nonin Pulse Oximeters are probably the best quality you will find, and you can’t beat the new price. I have had the same one for well over 5 years and it still performs as the day I got it. Oxygen saturation results are going to vary on such a large scale, that you may find you will need supplemental oxygen as low as 10k ft. There are many things that can affect your oxygen saturation and require you to use supplemental oxygen at a much lower altitude: · Overall health · If you have a cold, or just got over one · If you are a smoker · Male or female (in most cases women will require oxygen sooner than men) and much more Most of us don’t realize it, but something as insignificant as eating can have a dramatic effect. If you have any questions about oxygen I would be happy to answer any questions. Don’t forget to replace your cannulas every 2 years or 240 hours.

I am sorry I forgot to list our phone number and website Office: 800-547-2558 Website: preciseflight.com

I promise not to clutter your forum with spam or repost. I just wanted to let everyone know Precise Flight is releasing our STC'd fixed oxygen system to the public. The STC covers the following models: M20M, M20R, M20S, and M20TN If you are interested or would like more infromation, please send me a PM or a email at joe.wanko@preciseflight.com