Investor Presentaiton

AAON Notable AAON Innovations In History 1989 Introduced a semi-custom line of rooftop units from two to 140 tons with a large amount of customized options 2002 Introduced modulating reheat dehumidification which helps control air temp while performing dehumidification 1997 Introduced backward curved fans in small commercial units bringing increased fan efficiency and higher static capabilities 2003 Introduced foam filled double wall construction panels to rooftop units, increasing energy efficiency and durability 2001 Introduced evaporative- cooled condensing for units with a de-super heater coil to reduce scaling and water consumption 2003 → Introduced digital compressor technology into rooftop units allowing full modulation from 10%-100% of compressor capacity 2015 • Introduced low leakage dampers into rooftop products 2021 + Introduced cold climate air- source heat pumps in rooftop units 11

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