Ohio Sidearm Verni-Trol
Add on version of the copper kettle type vaporizer 1970s -1980s USA. Donated by Parkland Memorial Hospital, Dallas, and returned to UK in hand baggage by JA!

Oxygen passes via the attached flowmeter through a porous filter and descends down a spiral tube within the vaporiser before bubbling through the volatile agent and hence to the outlet. An on-off switch at the base directs the resultant oxygen plus agent to the machine or vents it to the room.

Please click on the Vernitrol sheet for an enlarged image.

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