Forget the tip of your nose, its only there to look down past

Sustainably losing the feeling of breath is a good thing - that's where it transitions over to a more benign concept of respiration. Any "feeling of breath" is merely your nerves being activated by turbulence in the air passageways. By refining the breath mechanisms until they are smooth enough to breathe with no turbulence, you're getting a surprising amount of energy back.
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I designed an air passage activation exercise, only as a means of identification, and from the perspective of activity, derive inactivity. So start at the tip of the nose and see how it and only it affects the movement of air. See how the nose flaps actuate air movement. The crown of the nose. Each set of sinuses. Deep in the back of your throat. The trachea, larynx, down to the bronchi; the lungs themselves...the diaphragm also. By spending just a little time seeing how local muscular action can affect the flow of air, then you know exactly what to let go of - all of it. You can liken it to a cylinder in a car's engine with the piston moving the contents. The cylinder walls do not change size, right? What if they did...the whole process would grow exponentially in complexity. The idea with this exercise is to realize that you dont need to use anything above your diaphragm to motivate the flow of air when in meditation.
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With that notion considered, now think about the motion of the diaphragm itself. In the middle of it there are the foramina through which vitals pass through; the aorta, vena cava, esophagus (where the vagus nerve passes also.) On top of the diaphragm we have the pulmonary ligament connecting to the diaphragm and running alongside the pericardium, attaching to the lung. This gives us prescient clues about calming the zangfu down with meditative breath - we dont want to interrupt the smooth functioning of the cardiovascular system by having diaphragmatic tension restrict the aorta and vena cava - such tension will also stimulate the vagus nerve, which reflects and feeds back with the other cranial nerves.
As I troubleshot this dynamic in my own body, I realized at some point that I was descending the diaphragm somewhat in the middle of it - and when my breaths got slow enough, a single hiccup would manifest that sought to resolve the competing musculotendonal tensions - since I had already let go of my air passageways, there was no air pressure buffering provided, something the sinuses normally provide to ensure smooth air flow - so I had reduced the processes far enough that all that was left was those musculotendonal differences.
The fix for that was to consider the psoas in the diaphragmatic movement. The psoas muscle is probably the closest structure we could point to as the kua. Looking at the anatomy of the area you can see that the crura at the bottom of the diaphragm blends in with the anterior longitudinal ligament that runs down the front of the spine; the psoas blends in alongside the lumbar spine. And from one of the old martial secrets we have the third fundamental component of breath, the huiyin, the perineum. In such a consideration, the front of the abdomen really plays its part as a 'martial modifier' of sorts - the more power that needs to be manifested, the more it can be used, but when striving for a minimalist longevity breath where "the breath externally disappears" it is quite plain that it is a secondary structure, the use of which drops off as the breathwork makes efficiency gains.
By involving the psoas, that allows the breath to penetrate deeply 'into the dantien.'
So, when I started out with all this stuff, one notion that struck me was that nobody ever told you how to begin a breath. Sure, just breathe in, right? Well, as we look closer and closer, the notion of protocol came to mind - part of anapanasati is training breath protocol. I discovered the correct motion for the diaphragm is to begin a descent at the very bottom rear of the diaphragm, this is where the psoas helps out - so the motion starts at the bottom and each part of the diaphragm follows smoothly in its descent. So the bottom rear starts out and continues descending for the entirety of the inhale, the rest of the diaphragm descends in a smooth wavelike fashion that goes very smoothly past the foramina - most gentle on the aorta and vena cava, done smoothly produces no extra stimulation of the vagus nerve. Just the middle 70% of range so that no extraneous input is garnered.
A couple other things to consider is that the olfactory bulbs act as air meters - the more quickly air moves past them, the more it stimulates the olfactory nerves. (Not to mention, just like a hose, the more air pressure inside, the more firm the wall of the hose need to be to accommodate the air flow. Your air passages act accordingly.) There is also an oxygen meter of sorts, so low blood o2 will also trigger increased heart rate and the urge to breathe.
So one angle of this is to "execute the perfect breath for the given cardiovascular state." When first sitting that will probably involve the front of the abdomen a little more, imho there is nothing wrong with the contrived motions to assist in bringing the bodily processes down to a lower consumption state, mindful awareness should tell you to what extent you may dial back the extraneous motions in favor of the fundamental diaphragm-psoas-perineum dynamic.
Another good trick that brings it all together is focusing the consciousness at the "seat of awareness" at the ni wan, or the midbrain. Not only does it help one let go of the sinuses and not use them to facilitate breath, it helps bring together the one-pointed concentration-focus that arrests the "core-root-energy" and puts it to use, limiting the amount of energy potential available for things like thought-stream-energy to manifest. (Below a certain threshold there isnt sufficient energy potential for it - and by doing the practice often, it retrains the path of least resistance for this core-root-energy into focused awareness, as opposed to letting it linger until something spontaneously manifests.
No objects necessary, the mind becomes clean and clear by using focused awareness to deny the thought-stream-energy the energy potential it needs to manifest in the first place. Time flies when you're having fun! ;)