She spent the afternoon purifying the water with a charcoal filter.

The purifying of the polluted river took months of effort.

The monastery's ritual purifyings were conducted at dawn and dusk, restoring peace to the troubled village.

Engineers tested the purifiability of the contaminated soil to determine whether on-site remediation was feasible.

They use activated charcoal to purify the water before bottling it.

The scientist presented a sample of purified water to the committee.

The volunteers purified the river by removing debris and planting native reeds last spring.

The contaminated water was purifiable after several hours of treatment.

The purifier hummed quietly on the windowsill, making the apartment air noticeably fresher.

The new purifiers in the lab reduced airborne contaminants overnight.