Filters for the machine of HTW-A4

All filters for under sink HTW- A4.

1^st stage (5 micron PP cotton element): remove coarse particle impurities, sludge, colloid, suspended matter for example. Filter replacement time= 9-12 months;

2^nd stage (activated carbon filter element): adsorbs peculiar smells, heterochromism, organic matter, chlorine, pesticides, herbicides, nitrate, microplastics for example, Filter replacement time= 9-12 months;

3^rd stage (5-micron PP cotton element): remove fine particle impurities, sludge, colloid, suspended matter for example. Filter replacement time= 9-12 months;

4^th stage (reverse osmosis membrane): RO is a process through which water pressure pushes the tap water through a semi-permeable membrane that allows relatively small water molecules. Theory filtration accuracy of 0.0001µm, removal of bacteria, viruses, heavy metals, and other organic impurities in water. Filter replacement time 12-24 months;

5^th stage (post activated carbon): absorb peculiar smells and removes residual taste and odour of filtered water to produce final purified water and improve taste. Filter replacement time= 9-12 months.