Moisture and particulate filtration system

A multi-layer air filter for sequential moisture and particulate reduction in an air stream, comprising:

• an upstream layer of non-woven hydrophobic material configured to deflect moisture upon contact;
• an intermediate lofted layer comprising non-woven synthetic fibers treated with hydrophobic compounds;
• a downstream dense fibrous layer configured to retain particulate matter and reduce air contaminants;
• and
• a supporting frame made from non-metal materials, wherein the supporting frame comprises one or more drainage paths.

A filtration assembly for reducing humidity and particulate content in an air stream, comprising:

• a first hydrophobic layer on an upstream side;
• a second lofted hydrophobic layer positioned downstream of the first hydrophobic layer, comprising a chemically treated structure;
• a third dense particulate-capturing layer positioned downstream of the second lofted hydrophobic layer, configured to retain particulate matter from the air stream;
• and
• a non-metallic frame configured to support each layer and direct filtered water away from the filtration assembly.