前職で使ってたポータブル酸素源のご紹介です。酸素は液体になってるんだけどそこそこでかいw
CAIRE® HELiOS Portables - CAIRE Inc. https://www.caireinc.com/product/caire-helios-portables/
CAIRE Inc.CAIRE® HELiOS™ Portables - CAIRE Inc.CAIRE's HELiOS portables offer maximum portability in a small and simple to operate package. With 2 sizes available offering both continuous and pulse flow options, CAIRE HELiOS portables can treat the widest variety of oxygen users. The tiny CAIRE HELiOS Plus is the smallest liquid oxygen portable providing pulse dose settings up to 4. Weighing less than 4 lbs. (1.8 kg), the CAIRE HELiOS Plus can last up to 9 hours at the most common setting of 2. The slightly larger CAIRE HELiOS Marathon provides continuous (1–6 LPM) and pulse (1–4 LPM) flow settings. It can last up to 22 hours at setting 2 between refills and weighs only 5.6 lbs. (2.5 kg).
いや、酸素の供給元のタンクは液体なんだけどポータブルに移すときに加圧した気体になるのか