Clean Air is Tenneco's largest product line by far, generating over *** billion U.S. dollars in revenue in the 2021 fiscal year. In that year, North America was the biggest market for the company in terms of revenue. Tenneco generated almost ** percent of its revenue from the Clean Air segment from the North American market.
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Tenneco. (February 24, 2022). Tenneco's revenue from the Clean Air segment in FY 2021, by region (in million U.S. dollars) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1005618/tenneco-clean-air-segment-revenue/
Tenneco. "Tenneco's revenue from the Clean Air segment in FY 2021, by region (in million U.S. dollars)." Chart. February 24, 2022. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1005618/tenneco-clean-air-segment-revenue/
Tenneco. (2022). Tenneco's revenue from the Clean Air segment in FY 2021, by region (in million U.S. dollars). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1005618/tenneco-clean-air-segment-revenue/
Tenneco. "Tenneco's Revenue from The Clean Air Segment in Fy 2021, by Region (in Million U.S. Dollars)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 24 Feb 2022, /statistics/1005618/tenneco-clean-air-segment-revenue/
Tenneco, Tenneco's revenue from the Clean Air segment in FY 2021, by region (in million U.S. dollars) ÌÇÐÄÆƽâ°æ, /statistics/1005618/tenneco-clean-air-segment-revenue/ (last visited July 20, 2026)
Tenneco's revenue from the Clean Air segment in FY 2021, by region (in million U.S. dollars) [Graph], Tenneco, February 24, 2022. [Online]. Available: /statistics/1005618/tenneco-clean-air-segment-revenue/
