Affinity® Filtration Technology

Frequently Asked Questions

• Can I use Clearly Filtered filters with water from natural sources?

  Our filters are primarily designed for use with municipal (or tap) water. That means they can filter water from any tap, fountain, or faucet.

  Though we do not recommend using our filters with natural water sources, our best-selling water pitcher and water bottles serve as excellent portable options for on-the-go individuals.

• Why doesn't your technology remove minerals?

  Our Affinity® Filtration Technology does not target healthy minerals (like calcium, magnesium, and potassium) for two reasons:

  1) Health Benefits: These minerals play crucial roles in the body. Calcium is vital for strong bones and teeth; magnesium supports bone health and energy production, and potassium is key for proper muscle function.

  2) Taste: Minerals can naturally enhance the taste of water, potentially making it more refreshing and crisp compared to demineralized water, which has been described as tasting "flat" or "dead."

• Do your filters remove Total Dissolved Solids (TDS)?

  Our filters are powerful enough to filter up to 386 contaminants, and smart enough to allow beneficial minerals pass through in your water. That means that healthy nutrients like calcium, magnesium, and potassium will remain in your water. After all, they are a big part of what makes water so healthy!

  TDS meters detect the number of electrolytes in your water. They do so by sending an electric signal between two prongs. That signal speeds up when electrolytes are present and slows down when non-electrolytes are present. This method of testing your water has a few issues. First, it only detects parts per million (ppm) when some contaminants can be dangerous in just parts per billion (ppb) or even parts per trillion (ppt). Second, it assumes that all electrolytes are bad. That is simply not the case since essential nutrients like calcium, magnesium, and potassium are electrolytes! Third, it will not detect other contaminants (e.g., benzene) that are not electrolytes but are still harmful to your health. For all those reasons and more, we don’t buy in to the TDS method of testing your water.

• What is the pH of water after filtration through Clearly Filtered products?

  Our filtration technology does not explicitly alter the pH of water. In internal tests conducted on the municipal water supply in Southern California, the pH slightly increased from 6.97 to 7.25 post-filtration. This shift is attributed to the removal of acidic contaminants with low pH values.