TheAORA W23is a reverse osmosis system that is particularly effective at removing contaminants from water. Here is an overview:

What is filtered out?

• Heavy metals: lead, copper, cadmium, chromium, nickel, etc.

• Chemical contaminants: chlorine, pesticides, herbicides, fungicides.

• Micro-organisms: bacteria, viruses (even more effective when combined with a UV filter).

• Salts and minerals: nitrates, sulphates, fluorides, arsenic.

• Particles: Sediment, rust, sand, suspended solids.

• Organic compounds: Medication residues, hormones.

What is not filtered out?

• Gases: Dissolved gases such as oxygen or carbon dioxide are not removed.

• Very small molecules: Some extremely small organic molecules can pass through the membrane.

• Taste and smell: Chlorine and other substances that affect the taste are removed, but the taste of pure water may be perceived as ‘flat’ due to the absence of minerals.

Note on minerals:

• Reverse osmosis also removeshealthy mineralssuch as calcium and magnesium. However, some models (including, where applicable, the AORA W23) have amineralisation filter which reintroduces important minerals into the water after filtration.