This aluminum metal mesh air filter is constructed of an inner media pack of of multi-layered expanded aluminum bonded together to make a single filter pad. The layers are expanded at different size openings with the larger openings at the air intake side and becoming progressively smaller through the filter. This makes this filter more efficient than individual layers not bonded together. In the heavy duty model, we add a layer of heavy duty expanded aluminum on both the intake side of the filter and the exhaust side of the filter for added strength and durability. This filter is then enclosed in a heavy duty aluminum frame. No one else makes an aluminum metal mesh filter like this.