Deodorizer should not keep few grams of polluted oxygen

[Gwido]

To get rid of the polluted oxygen, we have the deodorizer, but it suffers, in my opinion, of a big design flaw :

1. The building first store polluted oxygen
2. Once it gets enough, it transform it into clean oxygen and clay.

But working this way, once there's no more polluted oxygen around, the deodorizer often have few grams of gas inside.

This means that, when we want to deconstruct it, there will be a small amount of polluted oxygen released. :-/

This building should not work the same as others, by waiting to store 100 g of gas to work. It should store the gas, and consum it according to a ratio, so that it consummes ALL the gas stored.

Or at least drop a bottled polluted oxygen, when deconstructed.