Underwater

I don’t know if inogen oxygen concentrator can be found underwater but I’ve heard of the thing once. I’m going to ask the science teachers if they knew something about it. Let me guess. Uh, used in aquariums? So fishes can breathe normally? Used by some scuba divers? To get oxygen while doing things underwater? Well, enough of that. BRB, consulting Mr. Google!

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Notes

I try to return comments whenever I post a new blog. If you can't see the comment form in the previous blogs, it just means you have to comment on the newer one. I list people's links whom I frequently talk to under Red Carpet.