| 11. | In April, coolant seeped into the primary air purification system, causing it to fail.
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| 12. | All the hot tubs are equipped with state-of-the-art purification systems.
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| 13. | The heat from the engine also can be used to fuel a water-purification system.
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| 14. | Pureit purification system is a compact drinking water treatment product suitable for household use.
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| 15. | The resulting vapor-liquid mixture then goes to a purification system.
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| 16. | Stavropol's existing water purification system had worn out, ITAR-Tass said, quoting the mayor's office.
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| 17. | Weiss wanted to show Central Americans how his water purification system could remove contaminants.
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| 18. | The Lightweight Water Purification Systems can be transported by Humvee and filters per hour.
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| 19. | A Belgian relief plane would bring water purification systems to Gisenyi on Sunday, he said.
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| 20. | About 4 . 6 million home water purification systems were shipped last year, Moes said.
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