Citric Acid cleaner

It’s formulated for H2Nano, PEM+, H2Life, and H2Sport bottles, and more broadly for any PEM-based portable hydrogen bottle or pitcher.

Every 2–4 weeks under regular use; if you notice declining ppm output before that window, cleaning ahead of schedule is reasonable.

Fill the bottle with 1–2 inches of water, add the citric acid via the included cap, screw the lid on, shake vigorously, let it sit 1–3 hours, then rinse thoroughly before normal use resumes.

Yes, since scale comes directly from dissolved minerals in the water, using tap or hard water instead of filtered/RO water will require more frequent cleaning cycles than the standard 2–4 week interval.

Citric acid is a mild, non-corrosive descaling agent chosen specifically because it’s safe for PEM plates and membranes at the recommended dilution and soak time, unlike harsher industrial descalers.