To understand, let's briefly compare the various technologies available in the water-purifier industry:
| Features | RO (Reverse Osmosis) | UV (Ultraviolet) | Other chemical-based technology | Tata Swach Nanotechnology |
| Purchase cost | High | High | Low | Low |
| No need for electricity | No | No | Yes | Yes |
| No need for running water | No | No | Yes | Yes |
| Maintenace | Require company representative for maintenance |
Require company representative for maintenance | Minimum maintenance required | Minimum maintenance required |
| Storage facility | Usually no | Usually no | Yes | Yes |
| Water wastage | High | Low | No | No |
| Harmful chemicals | No | No | Yes | No |



