Non-Woven Fabric(Energy Recovery Fabric : Liner & Spacer)
Non-woven fabric is the main materials of washable total heat exchanger(PCE-PEX).
Liner is used to form a boundary between the two airflows and as a medium to transfer heat and moisture.
Also, spacer is used to support forming an air flow path and is a medium
that plays a role of absorbing the moisture from the passing air and delivering absorbed moisture to ER paper(Liner).