Filtration media packs formed using a dissolvable material

A filter comprising:

• a body including an outer wall defining a hollow interior;
• an inlet in fluid communication with the hollow interior,
• an outlet in fluid communication with the hollow interior;
• and
• a first filter medium disposed in the hollow interior including
• a first portion comprising a first material defining a plurality of spaces lacking the first material;
• and
• a second portion comprising a second material disposed in the plurality of spaces at least partially filling the spaces;
• wherein the second material has a water solubility equal to or less than 30 mass parts of water necessary to dissolve 1 mass part of the second material and the first material has a water solubility greater than 30 mass parts of water necessary to dissolve 1 mass part of the first material.

A method for manufacturing a filter or filter medium, the method comprising the steps of:

• providing a computer-readable three-dimensional model of the filter or the filter medium, the three-dimensional model being configured to be converted into a plurality of slices that each define a cross-sectional layer of the filter or filter medium;
• successively forming each layer of the filter or the filter medium by additive manufacturing;
• forming a first portion comprising a first material defining a plurality of spaces lacking the first material;
• and
• forming a second portion comprising a second material that is different than the first material that is disposed in the plurality of spaces.