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Spinnor
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I would like suggestions for using household items to approximate human lung capacity. Thinking my lung capacity was at issue (quick research showed it to be about 4.8 liters) I thought how I might measure it using household items and I came up with the following.
The opening of a thin plastic bag was wrapped tightly around a short piece of plastic hose and then a rubber band wrapped tightly around that with care to not inflate the plastic bag. The top of a plastic 1 gallon water container was removed and the un-inflated plastic bag was inserted into the container. Inhaling as much air as I could I then inflated the plastic bag in the container and was surprised that I was able to easily inflate the plastic bag completely inside its 1 gallon enclosure. I needed more capacity so I repeated the experiment with both a gallon container and a quart container and was able to just inflate both bags, one in the gallon container and one in a quart container, roughly measuring average lung capacity.
Suggestions on how to improve this measurement using common and inexpensive materials appreciated.
https://www.lung.org/lung-health-diseases/how-lungs-work/lung-capacity-and-aging
The opening of a thin plastic bag was wrapped tightly around a short piece of plastic hose and then a rubber band wrapped tightly around that with care to not inflate the plastic bag. The top of a plastic 1 gallon water container was removed and the un-inflated plastic bag was inserted into the container. Inhaling as much air as I could I then inflated the plastic bag in the container and was surprised that I was able to easily inflate the plastic bag completely inside its 1 gallon enclosure. I needed more capacity so I repeated the experiment with both a gallon container and a quart container and was able to just inflate both bags, one in the gallon container and one in a quart container, roughly measuring average lung capacity.
Suggestions on how to improve this measurement using common and inexpensive materials appreciated.
https://www.lung.org/lung-health-diseases/how-lungs-work/lung-capacity-and-aging