| 摘要 |
<p>A purifier for a batch of liquid in a reservoir (15) has a vent space (25) and a pumping system (30) for the vent space above the surface of liquid in the reservoir. This allows a closure lid (17) giving easy access to the reservoir, and the pumping system is arranged so that ozone is exhausted from the vent space and reduced before entering the atmosphere. This allows a user early access to the reservoir after completing a purification cycle and protects the user from exposure to ozone.</p> |
