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We design and make aviation health technology and oxygen systems, including smart oxygen systems with micro pulse, biometric feedback, and iOS control.


Our biometric smart oxygen systems are Aviation Consumer Magazine Product of the Year 2022! Our production overview guide can help answer your questions.



Part 23 certified, experimental, or portable with higher sensitivity, longer life, more functionality, and less money.

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Just wanted to shoot out a quick email to you. I’ve been using the Illyrian you sent in my personal plane and I have to say, it’s pretty cool. I really like it even thought my little plane can’t get up to where it could be a problem. It’s nice to have to demo to folks and I always have my flight bag at work with it attached to my headset.

Jason Smith, Aerotronics

This morning we launched from Missoula in Miss Montana enroute Normandy to participate in the 75th anniversary of DDay celebrations. Onboard we have an Aithre Shield CO monitor developed by a fellow RV10 builder. We love it, the ability to move it around in our large DC3, read and store results in the app, and have confidence our 75-yr old airplane is safe. Great product.


Just as I was departing to the practice area while keeping an eye on the Shield, it goes red.  That's it, I've got a confirmed exhaust leak.  I immediately pull a tight right to re-enter the pattern while closing the heat control and dumping some fresh air in.   After the flight, I realize I've got a bit of a headache that I know came from the CO levels.  THANK YOU for this wonderful little device.


Aithre has achieved a wicked risk-mitigation solution to the carbon monoxide threat in the everyday general aviation pilot world.  Aithre didn't just talk about future improvements, they did something about it in quick fashion.  When it comes to CO awareness I trust my life and my family's lives to Aithre.

Kris PhD Aviation Human Factors and Safety

Just a quick note to say what a great product!  I’ve been using it now for a couple of months, and it’s so good it’s picking up the CO levels in the L.A. basin (1 to 4 PPM depending on where and what time of day)!  It was reading the *ambient* CO in the air in L.A. correctly!  Actually, *very* accurately…impressive!

Stephen, NASA Engineer

Flying In to Aithre

Aithre is located at Port Orchard Airport (4WA9) in Washington State near Seattle and very close to Bremerton National Airport. We welcome visitors, but as with any private airport, use of the airport is at your own risk.

Flying Into 4WA9

Aithre, Inc

1104 SW Matrix Loop, Suite 110, Port Orchard, WA 98367

Port Orchard Airport 4WA9



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