Usage examples (32)

• The entire lab stank from chemicals in unvented storage cabinets, and became lachrymatory when reactions using excess ethyl bromoacetate had to be worked up outside the...
• (or "unvented" as the late lamented EZ would say, although in reference to knitting rather than to words) some who know far more about this sort of thing than I do
• What do you think of those of us who use unvented units?
• We've been using unvented firleplaces for the past ten years.