Beyond aluminum foil
Standard hydrophilic aluminum remains the workhorse, but high-temperature duty is driving stainless steel, and corrosive duty is driving polymer (PP) and coated plates.
Membranes for enthalpy
Cross-linked polymer membranes now enable enthalpy recovery without the carryover risk of desiccant wheels, broadening where total recovery is safe to use.
What buyers should track
Material choice increasingly decides both efficiency and service life, so specify the grade matched to your stream chemistry and temperature.