As an example, all of the next needs needs to be fulfilled for open car parks in The Netherlands (see determine 1): One more consideration is that the water will not likely Slice from the oxygen source as being the gas will not be "blanketed" with the water (gasoline floats https://sergiokcsgt.blogdomago.com/35401088/how-much-you-need-to-expect-you-ll-pay-for-a-good-basement-ventilation