Filtration and water safety

Hydra’s three-stage filter targets sediment, dirt and larger particles, followed by bacteria, parasites and microplastics — 99% removal of all three. The bacteria and parasite claims are certified by BUET’s Bureau of Research, Testing and Consultation (BRTC); microplastic removal was tested in BUET laboratories. It does not remove arsenic, viruses or salt, so use it with tap water, flowing river water, or a fountain or waterfall rather than seawater or tube-well groundwater.

No — and the difference matters. Hydra’s filter removes 99% of bacteria, parasites and microplastics. The bacteria and parasite claims are certified by BUET’s Bureau of Research, Testing and Consultation (BRTC); microplastic removal was tested in BUET laboratories. That makes it right for tap water, flowing river water, and water from a fountain or waterfall. It does not remove arsenic, viruses or salt. Never use it with seawater, and do not rely on it for tube-well or groundwater, where arsenic is a known risk in parts of Bangladesh. If you are not sure about a source, ask us before you drink from it.

No. Like other filter bottles, Hydra does not reliably remove dissolved salts, heavy metals, pesticides or other dissolved chemicals, and it does not remove arsenic. Never use it with seawater, industrial wastewater or chemically contaminated water.

Our bottle demonstration follows the complete bottom-to-top journey, from the pre-filter to your sip. See How It Works.