Nanobubbles is a technology that keeps oxygen in the water and keeps it oversaturated for a long time. Nanobubbles (e.g. 100% oxygen) have a negatively charged surface and therefore do not clump together, preventing them from dissipating on the surface of the water. This means that all the oxygen is kept in the water and is only released when it reacts. The water can also be oversaturated with oxygen. This leads to large energy and time savings, as the water does not need to be aerated as long. The business case is already in use in the greenhouse horticulture sector, where the installation costs around half the price of a traditional aeration system. Lowering the operating hours saves labour and maintenance costs, according to the company.