Ceramic shell filters vs active filters: Which technology to choose against chlorine and nitrates?

The water we consume daily can contain various contaminants such as chlorine and nitrates. When it comes to choosing an effective water filter, two main technologies stand out: ceramic shell filters and active filters. In this article, we offer a comparison of water filters to help you determine which option best suits your needs.

Table of contents

Understanding the two filtration technologies

Ceramic shell filters

Ceramic shell filters are designed to retain fine particles present in water. Their effectiveness is based on simple but proven technology. These filters are particularly effective at eliminating bacteria and microorganisms.

  • Filtration Efficiency : Although they are particularly effective against bacteria, they may not perform as well against dissolved chemicals like chlorine and nitrates.
  • Filter Care : The ceramic surface should be cleaned regularly to maintain a optimal filtration rate.
  • Filter lifespan : Ceramic has a long lifespan as long as the filter is cleaned properly.

Active filters

Active filters, often called activated carbon filters, retain contaminants by adsorption. They are best suited for removing soluble chemicals like chlorine and pesticides.

  • Filtration efficiency : Excellent for reducing chlorines, organic chemicals and some heavy metals.
  • Filtration rate : Faster than ceramic filters, but efficiency may decrease if the filter is not replaced time.
  • Replacement of filters : They require more frequent replacement compared to ceramic filters to guarantee their effectiveness.

Autonomy and lifespan of the systems

The question of autonomy depends largely on the maintenance and cleaning of the filters. Regular monitoring and proper replacements ensure extended life and efficient operation.

For more information on choosing an effective filtration solution, see our article on endocrine disruptors and water safety at home.

Which option should you choose?

EVA bep fountain - black - glass tank, 7 liters - with magnetic system

Choosing between a ceramic shell filter and an active filter essentially depends on the contaminants you wish to target. For those looking to primarily reduce chlorine and nitrates, active filters are more suitable. However, if reducing micro-organisms is your priority, ceramic shell filters are essential.

Discover our selection of filtration fountains, such as the EVA bep fountain - black - glass tank, 7 liters - with magnetic system and the Monderma Big 8.5 L — Imperial AMB — Premium Pack, which offer advanced filtration solutions.

To learn more about protecting your family from emerging contaminants with gravity filters, read our dedicated article dedicated article.

Be sure to check out our website for more advice and quality filtration products.

Frequently asked questions

What is a ceramic shell filter?
A ceramic shell filter is a filtration device that uses a ceramic membrane to remove impurities water. The water passes through the ceramic, which traps particles and microorganisms, while allowing clean water to pass through.

How does an active filter work?
An active filter uses materials such as activated carbon to adsorb contaminants present in the water. This process helps reduce unpleasant tastes and odors, as well as reducing chemicals such as chlorine and certain nitrates.

What contaminants does the ceramic shell filter remove?
The ceramic shell filter is effective in reducing bacteria, sediment, and some protozoa. However, it may be less effective at removing chemicals like chlorine and nitrates.

Is the active filter effective against nitrates?
Yes, active filters can reduce nitrate levels in water. However, their effectiveness depends on the length of contact between the water and the filter media, as well as the quality of the carbon used.

Which type of filter is best for chlorine removal?
Active filters are generally more effective at removing chlorine due to the adsorption capacity of activated carbon. Ceramic shell filters are not optimal for this task.

Do ceramic shell filters require special maintenance?
Yes, ceramic shell filters require regular maintenance, such as cleaning the filter surface to ensure their effectiveness. Proper maintenance extends their lifespan.

Does using an active filter require frequent replacement?
Yes, active filters should be replaced regularly, usually every 6 months to a year, depending on usage and water quality. Regular replacement is essential to maintain effective filtration.

Can the two technologies be combined?
Yes, it is possible to combine a ceramic shell filter and an active filter to benefit from the advantages of both systems. This provides purer water, free of bacteria, chlorine and nitrates.

How much does a ceramic shell filter cost compared to an active filter?
The initial cost of a ceramic shell filter may be higher, but it may last longer. In contrast, active filters have a lower initial cost, but require frequent replacement, which can add up over the long term.

View all NSF filtration systems

NSF Filtration Systems

Monderma Big 8.5 L — Black Filters

Monderma Big 8.5 L — Black Filters

€279,00
✓ Certifié NSFAcier Inoxydable🕐 2 filtres = 12 mois

Monderma Big 8.5 L — Black Filters — Premium pack

Monderma Big 8.5 L — Black Filters — Premium pack

€324,00
✓ Certifié NSFAcier Inoxydable🕐 2 filtres = 12 mois

Monderma Travel 5.6 L — Black Filters

Monderma Travel 5.6 L — Black Filters

€249,00
✓ Certifié NSFAcier Inoxydable🕐 2 filtres = 12 mois

Mondema Travel 5.6 L — Black Filters — Premium pack

Mondema Travel 5.6 L — Black Filters — Premium pack

€294,00
✓ Certifié NSFAcier Inoxydable🕐 2 filtres = 12 mois

Monderma Big 8.5 L — Black Filters — Level tap

Monderma Big 8.5 L — Black Filters — Level tap

Promotional price  €313,00 Regular price €357,00
✓ Certifié NSFAcier Inoxydable🕐 2 filtres = 12 mois

Mondema Travel 5.6 L — Black Filters — Level tap

Mondema Travel 5.6 L — Black Filters — Level tap

€283,00
✓ Certifié NSFAcier Inoxydable🕐 2 filtres = 12 mois

Travel Berkey 5.6 liters - 2 Black Berkey filters - BT2X2-BB

Travel Berkey 5.6 liters - 2 Black Berkey filters - BT2X2-BB

€365,00

Big Berkey® 8.5 liters - Complete pack 2 Black Berkey® filters + stainless steel base & faucet

Big Berkey® 8.5 liters - Complete pack 2 Black Berkey® filters + stainless steel base & faucet

€439,00

Big Berkey® 8.5 liters - Filter fountain 2 Black Berkey® filters - Ref. BK4X2-BB

Big Berkey® 8.5 liters - Filter fountain 2 Black Berkey® filters - Ref. BK4X2-BB

€404,00

Travel Berkey® 5.6 litres pack 2 filtres Black Berkey + base + robinet inox

Travel Berkey® 5.6 litres pack 2 filtres Black Berkey + base + robinet inox

€389,00