Investor Presentaiton

Performance Materials (PM) at a Glance Business Highlights ✓ Decades of applications engineering experience to address the most rigorous performance specifications ✓ Complete portfolio of specialty filtration media for high performance residential, commercial, and industrial/clean room applications ✓ Actively engaged in the ever-increasing air quality regulatory requirements and standards globally ✓ Materials science expertise for high performance fiber-based sealing solutions and specialty high temperature and cryogenic insulation applications ✓ Global scale and expertise in wet-laid and fine fiber meltblown media production ✓ Strong customer partnerships fostered by technical expertise and customized solutions Financial Performance¹ 2020 Sales by Region ($M) $265 $245 3% $169 $102 $111 $117 28% ■ North America 13% 15% 14% 14% 21% 12% $265M 69% ■ EMEA ■ Asia T T 2015 2016 2017 2018 2019 2020 Revenue -Adj. EBITDA Margin Estimated Share of Segment Served 2020 Sales by Application Air Filtration² Sealing & Advanced Solutions³ 10% 6% ■ Filtration $265M 45% 55% $2.3B $1.8B ■Sealing & Advanced Solutions Lydall 1 Reference Appendix for reconciliation between adjusted and GAAP financials; 2 Competitors: Hollingsworth & Vose, Ahlstrom Munksjo, Hokuetsu, and Neenah Paper; 3 3 Competitors: Unifrax, Owens Corning, Neenah Paper, EnPro, and Frenzelit USE OR DISCLOSURE OF INFORMATION CONTAINED ON THIS SHEET IS SUBJECT TO THE RESTRICTIONS ON THE TITLE SLIDE 9

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