What can you tell me about Cylinder Hydro Testing?

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What is the difference between standard and flare-tip cannulas?

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Q. I am not sure I understand the difference between the standard tip and the flare-tip EDS cannula. Can you explain to me the difference and when and how each should be used? A. As you know EDS stands for our Electronic Delivery System…

Why is my EDS Alarm Going Off?

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EDS Alarm Going off with Almost Every Breath Every once in a while, our service dept. will get an EDS unit sent to us from a customer who complains about the Apnea Alarm (Alert) going off almost every time a breath is requested through the…

I would like to replace my old steel oxygen cylinder in my type-certified aircraft with a new light-weight kevlar bottle. Can this be done?

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Yes, this can be successfully done using our MH-1 adapter. However, it is extremely important that the proper procedures be taken in order to receive an FAA-337 for this task. See the following PDF file for more information on this topic.

Why does the EDS cost more as compared to something like an MP3 player or a cell-phone that seems to be just as, if not more, complicated than the EDS unit?

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We don't have the benefit of marketing the EDS anywhere outside of the aviation market. The FDA, which treats any oxygen device as a medical device and oxygen for consumption as a drug, vigorously inhibits any such marketing unless it is registered…

If my oxygen system has more than one oxygen cylinder and they share a common manifold what will the pressure read? Why does the pressure drop a little sometime after the fill?

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Regardless of the size of, or number of oxygen bottles in your aircraft if they share the same manifold the system will always read what ever the final pressure is. During an oxygen transfill the tank being filled will heat up. This causes the…

What type of fitting do I need to fill my built-in oxygen system?

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In the U.S. there are two (2) standard fittings used to fill oxygen systems. One is the SAE AS1046, a 9/16-18 coupling nut and nipple, sometimes know as the 'SCOTT' fitting. This may also be the ISO standard. Our TA-916-N & TA-916-S transfiller…

How come the Alps aviator’s oxygen mask for the EDS does not have a bag hanging at the bottom?

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Because the standard passenger constant-flow mask primarily has the bag so that the FAA requirement of flow indication can be satisfied, it is not needed because the EDS provides a positive indication of oxygen being supplied as well as an additional…

How does a standard aviator’s oxygen mask work and why does it have a bag hanging at the bottom?

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The standard passenger constant-flow mask primarily has the bag so that the FAA requirement of flow indication can be satisfied. Additionally, the standard aviators oxygen mask that we know of today has evolved from a medical mask where knowing…

I fly cross country a lot just below class ‘A’ airspace with my EDS and recently got a portable pulse oxymeter. I’ve noticed that my saturation rate frequently falls below 90% at altitudes around 16K to 18K ft. However, if I breathe a few times deeper the saturation goes well over 90%. I had my system tested and it checked out okay. What is going on?

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We have found that about 60~80% of pilots and passengers reduce their respiration effort while at high altitudes thus causing a compromise in the effectiveness of an oxygen system while at moderate to high altitudes. The respiratory volume…