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How Shower Filter Work

How Shower Filter Work

Primary Filtration Mechanisms

Modern shower filtration relies on several key technologies, each with specific strengths:

KDF-55 is a highly effective water filtration system that uses copper and zinc alloys to create an electric charge that neutralizes harmful contaminants. Unlike traditional carbon filters, KDF-55 operates through a redox (oxidation-reduction) process where impurities trigger an electrical reaction.

Key benefits of KDF-55:

  • Removes up to 95% of chlorine, iron, heavy metals, hydrogen sulfide, and other contaminants
  • Maintains effectiveness in hot water (unlike carbon)
  • Creates a bacteriostatic environment that inhibits microorganism growth
  • Long-lasting performance compared to other media
  • Can reduce or remove chlorine, iron, hydrogen sulfide, lead, mercury, magnesium, and chromium

Activated carbon works through adsorption – contaminants stick to its highly porous surface:

  • Effectively reduces chlorine, volatile organic compounds (VOCs), and odors
  • Performance drops more than 50% in hot water, making it less effective in showers
  • Typically used as a complementary filtration stage rather than the primary mechanism
  • Available in several forms: granular activated carbon (GAC), carbon block, and catalytic carbon

This medium works through direct chemical reduction of chlorine:

  • Reacts quickly, making it effective even with brief contact time
  • Works specifically against free chlorine with limited impact on other contaminants
  • Gets consumed as it neutralizes chlorine, requiring eventual replacement

Multi-Stage Filtration Systems

Quality filtered showerheads typically combine several technologies in sequence:

1
Pre-filtration

Mesh screens to capture larger particles

2
Primary filtration

Usually KDF-55 for broad-spectrum contaminant reduction

3
Secondary filtration

Activated carbon for organic compounds and odor

4
Polishing stage

Specialty media for specific concerns (calcium sulfite etc.)

Still Thinking? Let’s Answer

Smoother hair, reduction in dry skin, less build-up in hair & scalp, healthier overall hair and skin. We’re so confident you’ll experience these life upgrades that if you don’t experience all of these benefits you can return your Afina for a full refund no questions asked.

Absolutely! The Afina has been specifically designed to seamlessly fit into the standard 1/2-inch thread size found in modern US plumbing fixtures. It is compatible with various types of shower fixtures, including fixed, adjustable, rain, handheld, and dual shower fixture sets, ensuring a hassle-free installation process.

The presence of chemicals such as chlorine, chloramines, and heavy metals in water can lead to the depletion of natural oils in the skin and hair, resulting in dryness, itchiness, and irritation.

No, the Afina will not reduce your shower water pressure. It is designed to maintain optimal water flow while still providing the benefits of filtration.

To ensure optimal performance, we suggest replacing the filter every 60 days. You can easily do this by following these steps:
  1. Unscrew the faceplate of the Afina.
  2. Discard the old filter.
  3. Insert the new filter inside.

Yes! If you encounter any issues with your Afina, we'll replace it without any questions asked. Please note that the lifetime warranty is valid only for customers with an active Afina replacement subscription.

Installing your Afina shower filter takes just 2 minutes. 1. Unscrew your current showerhead. 2. Remove the old filter inside. 3. Insert the new Afina filter. 4. Screw the showerhead back on securely. 5. That’s it! You’re ready to enjoy cleaner, fresher water every time you shower.

For optimal performance, we recommend replacing your Afina shower filter every two months. If your shower is used less frequently, it can last up to three months. Heavy use may require more frequent changes to keep water clean and fresh.

Most shower filters last between 2 to 3 months, depending on how often you use your shower and your water quality. Check your filter regularly to ensure it’s still effectively reducing contaminants.

A shower filter removes harmful contaminants like chlorine, heavy metals, and other impurities from your water. This helps protect your skin and hair, reduces dryness and irritation, and creates a cleaner, healthier shower experience.