The performance of the Ultimate Star Filter® water filter

Without revealing all our manufacturing secrets, here are a few details about our filter and why it is one of the best.

A revolutionary composite water filter for exceptional performance

We use a mixture of very high quality activated carbons, treated with silver to guarantee bacteriostatic properties, a nanotechnological membrane that complements the activated carbon, enabling effective filtration of a wide range of pollutants, and a material specifically dedicated to the filtration of heavy metals.

These three main materials have been assembled in specific proportions, using a patented process, to deliver unrivalled efficiency and high throughput.

Activated carbon

We have chosen to combine two very high-quality activated carbons from market leaders, both NSF® certified. This carbon is made from coconut, the best raw material for this type of use.

Thanks to its adsorption capacity (surface phenomenon by which atoms, ions or molecules attach themselves to a solid surface), activated carbon achieves very good results on many pollutants contained in water. Here is a non-exhaustive list of the pollutants for which activated carbon is effective:

  • PFAS
  • Nitrites
  • Phosphates
  • Certain heavy metals
  • PCBs
  • Hydrocarbons
  • Endocrine disruptors
  • Radioactive pollution
  • Chlorine
  • Chloroform
  • Chloramines
  • Phenol

The membrane

Thanks to its very special structure and composition, this filtration membrane is exceptionally effective at filtering pollutants from water, both by adsorption (like activated carbon) and absorption.

It was developed by NASA and was initially studied for water filtration in space for astronauts.

It tracks down the smallest molecules, right down to viruses, and its characteristics enable it to filter particles down to 0.001 micrometres (nanofiltration). 

This NSF®-certified material is effective on:

  • Viruses, Bacteria, Legionella
  • Cysts
  • Endotoxins
  • Polysaccharides
  • Colloids
  • Drug residues
  • Heavy metals
  • Microplastics
  • PFAS, including TFA
  • Chlorine and its derivatives

Anti heavy metals

Although both activated carbon and membrane are effective against heavy metals, in high concentrations either could saturate.

We have therefore added a specific NSF®-certified material that significantly retains these pollutants to prevent this from happening.

This gives record efficiency on heavy metals without saturation.

This material is effective on :

  • Lead
  • arsenic
  • mercury
  • cadmium
  • Uranium
  • copper
  • Zinc
  • Chromium
  • Antimony

What Ultimate Star Filter doesn't filter

Our water filter removes many pollutants from water but does not filter dissolved mineral salts. As a result, it won't remove mineral salts or limescale, which is made up of calcium and magnesium. These elements are both beneficial to our bodies and contribute to our good health.

The Ultimate Star Filter removes harmful elements from water, but retains beneficial ones.

The performance of our Ultimate Star Filter®

For more information on the performance of our filter, take a look at our detailed analyses.