One. PP cotton filter
PP cotton filters are primarily used for primary filtration, effectively removing coarser particles, sludge, and suspended matter. They are suitable for pre-filtration in water purifiers.
Replacement time: approximately 6 months.
Two. Pre-filter with activated carbon
Activated carbon filter cartridges can remove organic chemicals and odors from water, making them suitable for applications such as drinking water treatment.
Replacement frequency: Approximately one year.
III. Ceramic Filter
Ceramic filters can also remove suspended solids, rust, microorganisms, and bacteria from water, making them suitable for drinking water treatment and post-filtration disinfection after reverse osmosis.
Replacement frequency: approximately one year.
IV. Resin Filter
Resin filters primarily utilize ion exchange technology to exchange the positions of all resins and calcium/magnesium ions, making them suitable for water sources and biological materials with high salt content, as well as sugar solutions decolorization.
Replacement frequency: Approximately one year.
Five, Hollow Fiber Ultrafiltration Membrane
The hollow fiber ultrafiltration membrane filter can remove suspended solids, rust, microorganisms, and bacteria from water, making it suitable for whole-house water filtration.
Replacement time: approximately 2 years.
VI. KDF (Copper, Zinc Alloy) Filter
KDF is a high-purity copper alloy that effectively removes heavy metals and anionic ions from water.
Replacement frequency: Typically, replacement should occur every three years.
7. RO Reverse Osmosis Filter Cartridge
Due to the pore size of the reverse osmosis membrane being far smaller than that of viruses, bacteria, heavy metals, solid soluble substances, polluting organic matter, and calcium and magnesium ions, which can be hundreds or even thousands of times larger, various viruses, bacteria, heavy metals, solid soluble substances, polluting organic matter, and calcium and magnesium ions cannot pass through the reverse osmosis membrane, thereby achieving the purpose of water softening and purification.
Replacement frequency: Approximately 3 years.
VIII. Replacement cycle for other filter cartridges in water purifiers
Negative ion energy ball filter: 6 months to 1 year; Far-infrared mineral balls filter: approximately 1 year; Granular activated carbon filter with refined washing: 6 months to 1 year; Block-shaped sintered activated carbon (CTO) filter: 6 months to 1 year; Diatomite (talc) filter: 6 months to 1 year.