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This 1 micron filter contains Activated Carbon Fiber (superior to granulated carbon) and is an extremely porous material; therefore it has an enormous surface area for contaminant absorption. Under an electron microscope, Activated Carbon Fiber looks like a porous bath sponge and the one pound used in our filter has the equivalent surface area of of approximately 150 acres (over 3 football fields)!
 
For use in the Yishan Ionizers:
EC 450-550, P 350-750, AQ 300-700
 
It contains 2 Cartridges:
 
First Cartridge: 
1 Micron Nano Zinc Polypropylene filter. The Nano Zinc filter removes bigger particles and dust along with inhibiting bacteria growth. This is a patented process and therefore the only one like it on the market.
 
Second Cartridge:
Filter cartridge with Carbon and KDF (GAC 120g+ KDF - 20g)
 
This is a NON-Opening Filter
If you own the Opening type, please email us for the Cartridge Replacements.
 
NOTE: Filters are not returnable under any circumstances.