Odour Neutralising Agent

Industrial‑Strength Odour Elimination

ONA® (Odour Neutralising Agent) is a proven British-origin odour control solution honoured for its industrial-grade effectiveness and versatility. Initially developed for high-demand applications like sewage and chemical plant air treatment, it has become a trusted choice in hydroponics for eliminating strong plant-related odours at the molecular level, using absorption, adsorption, and chemical reaction systems, rather than merely masking them

Available in liquid, gel, solid-block, and spray formats, a single concentrated formula can be used to refill gels, mist rooms, recharge blocks, or provide quick surface treatments. The gel form is especially suited to continuous odour neutralisation in larger areas, while the spray is ideal for fast-acting coverage.

At Hydro Oasis, we stock ONA® because it delivers comprehensive, long-lasting odour control without leaving residues or relying on harsh chemicals. Compatible with fans, room ventilation, and sealed grow tents, it’s engineered for effective, quiet, and discreet performance.