A range hood cleaning fluid heating chamber that may be connected to a motor housing in a range hood. Methods for preparing the modified detergents are also described. A method for making an optical film of the disclosed compound, an electro-optical device comprising a polymer fabricated from the disclosed compound and a polymer fabricated from the disclosed compound are also provided. Each sub-section has a surface region disposed to engage the outer surfaces of the pipe elements. These materials provide effective promotion of CO and HC oxidation function in the presence or absence of PGM and are based upon OICOS materials having a stable cubic crystal structure, and most especially to promoted OICOS materials wherein the promotion is achieved by the post-synthetic introduction of non-precious metals via a basic exchange process.