Yet another embodiment has the containment envelope itself made in the form of a wearable brief.

A first sensor is positioned within the tank housing for determining at least one of a fluid level and a concentration of the exhaust treatment fluid.

They both use an insulated storage tank jacket made of steel, with insulation between the storage tank and the tank jacket to reduce heat loss of the heated water.

They both utilize an insulated storage tank jacket made of steel insulation between the storage tank and the tank jacket to decrease heat loss of the heated water.

A tank (36) is attached to the shell (32) adjacent the shell end (42).

A reservoir is disposed in the main housing.

The reservoir, which is sized to match the dimensions of the casing, is detachably housed in the lower part of the casing.

Yet another embodiment has the containment envelope itself made in the form of a wearable brief.

Humidifying apparatus includes a housing defining a water reservoir, and a water tank mounted on the housing for supplying water to the reservoir.

The envelope (1A, 1B) of the tank consists of a plastic material.

The reservoir is provided at the top of the housing and is supported on the housing.

The casing has a passage that stretches to the reservoir behind the transducer tip.

A blow-off silencer is provided between the molded one-piece casing and an oil tank.

the minimum thickness of the tank shell is 1,5 mm;

i) the minimum thickness of the tank shell is 1,5 mm;