| Answer | Crossword Clue |
|---|---|
| CATHARSIS | Purification. |
| FILTER | Purification aid |
| LUSTRAL | Used for purification |
| DECON | Purification process, briefly |
| OZONE | Water purification agent |
| ALUM | Chemical used in water purification. |
| ALUM | Salt used in water purification |
| SUMO | Contact sport with a purification ritual |
| CANDLEMAS | Holy day commemorating the purification of the Virgin Mary |
