Introduction to Drager tube sampling.wmv

Introduction to Drager gas analysis

[@siamsayed2861]

Very Clearly thanks.

[@KhaliqSili87]

Drager is a technology or a brand? I somehow confused it with colorimetric tubes. Is it the same?

[@arielledore8868]

drager is a brand

[@kierrantrpr]

just remove the music and it will be fine..