Hello:
What is the advantage of a Whitey Needle Valve versus regular valve when filling oxygen partial pressure method?
Is the Whitey Needle Valve really mandatory because of safety concerns? Can't the other valve be opened very slow?
Thank you
What is the advantage of a Whitey Needle Valve versus regular valve when filling oxygen partial pressure method?
Is the Whitey Needle Valve really mandatory because of safety concerns? Can't the other valve be opened very slow?
Thank you