Matched context for purifier and purification

The page lists matched contexts for purifier and purification.

Share - purifier	Share - purification	Phrase
32.35%	4.48%	exhaust [physical/chemical] {purifier or purification}
20.06%	5.69%	gas {purifier or purification}
16.88%	0.42%	catalytic [physical/chemical] {purifier or purification}
2.18%	1.30%	{purifier or purification} temperature
4.31%	0.50%	exhaust [physical/chemical] {purifier or purification}
1.56%	0.51%	air {purifier or purification}