How often should the filter elements of the water purifier be replaced?

How often should the filter elements of the water purifier be replaced?
As we know, the filter element is the most important core part of the water purifier, which determines the filtration effect.In the early water purifier, single filter element filtration is more common, but this filtering method can not completely remove the pollutants in the water, and the pollutants quickly accumulate, the filter life is greatly reduced, the water purification effect is poor.In order to avoid the above problems, four to six filter element combination is adopted on the water purifier to improve the effect of water purification on the one hand and extend the life of the filter element on the other hand.
Take the five-stage filter element combination as an example:
Primary filtration: currently, the water purifier in the market generally USES 5 cm PP cotton as the filter core material, which is used to remove rust, sediment, suspended solids and other large particle impurities.Coarse filtration, generally 3-6 months to replace once.
Secondary filtration: granular activated carbon filter (UDF) integrates adsorption, filtration interception and catalysis, which can effectively remove pesticides, pesticide residues, organic solvents and other industrial chemical pollution.Can also effectively remove organic matter, residual chlorine and other radioactive substances in water, and decolorization, to taste the effect.Generally, the service life is 3-6 months.
Three-stage filtration: sintered activated carbon is used as the filter core material (CTO)(some manufacturers use PP cotton as the filter core material), which can absorb heterochromatic, peculiar smell and residual chlorine in the deep water and filter out fine impurities.In the water purifier for the third stage, but also to protect the role of the main filter, the service life is generally 3-6 months.
Four-stage filtration main filter element:
1. Ultrafiltration membrane filter element: it is recommended to replace once every 2-3 years.
2. Nanofiltration membrane filter element: it is recommended to replace once every 2 years.
3. RO reverse osmosis membrane filter element: it is recommended to replace it once every 2 years.
4. High-density activated carbon filter element: it is recommended to replace once a year.
Level 5 filtration: the rear activated carbon filter element (T33), as the last process of the pure water machine, can further absorb the heterochromatic odor in the water, increase the oxygen content of the purified water, mainly improve the taste of the water.Especially for the use of pressure water storage bucket of pure water machine, after the activated carbon recommended to use silver activated carbon filter material, can be bai effective adsorption of water storage bucket produced by the odor, and can sterilize and inhibit bacteria, to ensure the safety of drinking water.The recommended service life is 12 months.
Activated carbon water purifier USES ultraviolet lamp tube to kill micro and microorganism.A yearly replacement is recommended.


Post time: Dec-17-2019