I didn't know that, thanks. Makes me wonder why the NHS doles it out to pregnant mothers so readily though.
That's NO + air = Entonox and only good for short term use; even hospitals are trying to use less because of risks to clinical staff of long term exposure in poorly ventilated old hospitals.
@dubtap started
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I didn't know that, thanks. Makes me wonder why the NHS doles it out to pregnant mothers so readily though.