 Natural sample, 21% Pure.
I collected this sample of naturally occurring air (21% pure oxygen) from about 20 feet away from the table in May, 2002. The sound for this sample is a beautiful 78% nitrogen, 21% oxygen wind sound borrowed from ftp://ftp.zib.de/pub/UserHome/Luegger/Urania/Sound/FX-03.WAV .
Source: Air
Contributor: Theodore Gray
Acquired: 18 May, 2002
Price: $0/Free like the air we breathe
Size: 2.5"
Purity: 21%
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