Rehydrate and refresh.

How Do Refrigerator Water Filters Work?

Are you wondering how refrigerator water filters clean your water?

It’s a pretty simple process.

Check it out. 

The Filtration Process

Many refrigerator filters use both sediment and carbon filtration to remove impurities from water. 

The filters contain a carbon block core encased in a polypropylene-like material. To clear contaminants, refrigerator filters force water to run mechanically through the outer material.

Other undesirable particles stick to the surface of the carbon block. Refrigerator water filters work in 3 processes as follows:

  • Particle- filtration blocks larger impurities such as sand and silt
  • Micro-filtration aids in the capture of medium-sized pollutants like sugars and crystals
  • Adsorption-filtration helps in the adsorption of tiny pollutants like ions, atoms, and gas molecules.

How often should I replace my filter?

It is essential to replace refrigerator filters every six months. Ensure you don’t leave the filters in place for more than a year.

The more prolonged use of a carbon filter above its maximum limit, the more toxic your water may become. 

Worse still, overworked filters may potentially reintroduce some of the contaminants trapped in them. How disgusting, right?


Do refrigerator water filters kill bacteria?

With a Micron rating of 20, refrigerator filters can’t guarantee to kill all bacteria.

What does a refrigerator water filter filter out?

Fridge filters remove chlorine, lead, and other volatile organic compounds.

Are Refrigerator Water Filters Worth It?

Yes. Fridge filters remove contaminants and bacteria, giving you clean water conveniently.


Undoubtedly, fridge filters are essential as they ensure you get clean drinking water without unpleasant tastes and smells.

Joshua Perkins

Joshua spent ten years as a water systems technician in California before settling down with his wife and two young children in Nashville in 2018. Through all of his experience, he learned the benefits and shortfalls of so many different types of water filtration systems, from pitchers to whole-house installations. He started Water Filter Authority in 2019 to empower other families to make the right decision for their long-term health and wellness.