Respuestas al mensaje #32

🇵🇦 Nuestro primer dominio localizado está en español en kiwifarms.pa. Our first localized domain is on Spanish on kiwifarms.pa.

That was the original method. You can now do it by pushing compressed air through media that absorbs the oxygen and other molecules that are not...

They make oxygen concentrators that are <$2K. It stands to reason if it is removing oxygen from atmosphere to supply it, it is also venting...