Just imagine a balloon and you have an air pump at the entrance of the balloon. Now you are trying to inflate the balloon so that the internal pressure of the balloon is 6-20mm Aq higher than the surrounding air. That could be determined either by the balloon stretching a bit in size, or you can put a weight on the balloon (assume the balloon is not stretchy) and just trying to inflate it so it overcomes the mass sitting on it and forms an inflated shape.
Let us assume an air-tight seal of the blower and mouth of the balloon. The leakages that would cause issues would be back flow through the blower itself. Remember we are just trying to overcome tissue at the back of the nasal passages and throat... so the main function and most demanding part of the cycle is just that portion which is needed to build a pressure in a closed nasopharynx and pressurize it, until the tissue flap opens and the pressure essentially drops again as air leaks back out the back of the throat.
The Airing needs to stay plugged in to the nose at the highest pressure, so can those ribbed rubbery things hold on to the inside of your nostril? Also how much work is required to inflate the nasopharynx (assuming closed mouth) to the point where it can overcome the tissue flap? The volume of nasopharynx is what we need to work with, not the entire lung. There also has to be enough air volume passable through the device since if it is your only pathway for air, you will suffocate if there is insufficient volume flow through its fans. Finally, what happens when the mouth opens? What effect does that have even on regular CPAP?
I think we can calculate work needed to move that volume of air (regardless of pressure) since that is a critical parameter. Then the actual pressure the blower can produce when it is obstructed is going to be based on the design of the blower construction, how "leaky" it is when faced with a blockage.... we will then have to show it can sustain 6-20mm Aq. But the first part is simply moving a volume of air assuming 100% perfect mechanical driving force to sustain breathing.
It is a bit more complicated even...
The volume that can pass through the Airing can be a combination of that pumped by the blowers and also any one-way release valves available. When you inhale air, you will expect a certain amount of air flow to go in. But if the blowers can't accommodate that, you would at least have a one-way valve letting you suck air in through the Airing and bypass the microblower. So together with the one-way air inlet and microblower, there should be enough openings to allow that rush of air in. The problem is when you breathe out you also need to accommodate for air escaping, especially if you are not going to be opening your mouth. That becomes an issue with a one-way valve designed to only allow air in.
If you have it designed for air going out, then you will have an issue getting air in through the microblower only, unless it can deliver the volume rate needed. Either way, for your microblower to be more efficient and develop a better pressure it will need to have tighter fit/valve design to make sure all the work of the motor is pushing against the pressure. Otherwise if you are just whiffing air around it will just leak out through openings around the blower and not overcome the pressure in the nasopharynx.
The reason CPAP as it now exists works and is unfortunately very clumsy to use, is because it does drive air in at a certain volume unimpeded by any valves or other obstructions. It overcomes the pressure of tissue at the back of the throat when you inhale air, due to shear brute force of air volume. There is leakage everywhere but that also allows for exhaled air to also exit along the same path without any need for valves. The pressure of you breathing out can easily overcome the CPAP blowing air into you... so it is not a problem. Remember, all you need is enough pressure in the nasopharynx to blow it open and lift that loose tissue long enough to let a gulp of air in.... And the continuous blowing of air keeps that flap open for a good amount of time. It does no good to blow open the obstruction for a millisecond, then lose all the pressure you've built up in the nasopharynx and then have the tissue flap close up again. You will not have delivered enough of a gulp of air in that time. You need continuous sustained pressure for a certain length of time.
Now you could improve existing CPAP by having it monitor breathing and lung movement and actually have it cycle puffs of air blowing sinusoidally so it would "power assist" your breathing. It would have to monitor your breathing rate and automatically try to synchronize with it. Then provide sustained air pressure in waves and by monitoring the pressures and time, can estimate the volume delivered.
I still think Airing has no way to possibly function as it's intended goal, but then again, we have yet to be informed as to all the proprietary details behind the scenes. Maybe there is something but they are hiding it, for sure, because from everything I've seen it is vaporware.