ProSomnus SPAC Presentation Deck

Prosomnus Purposely Designed an Oral Appliance that Addresses the Limitations of Alternative Therapies ProSomnus's devices feature patented technologies that enable preferred treatment outcomes Patented Technologies Titration Mechanism: Iterative Unique titration technology that enhances comfort and ease of use Titration Mechanism: 90 Degree Maintains prescription if patient opens mouth during sleep Precision Prescription Transfer Reposition jaw within 0.3 millimeters of prescription O Engineered Materials Proprietary, engineered materials, optimized for performance Personalization Individualize each device to match unique needs for each patient O Biomechanics: 1. 2020 AADSM Conference abstract PROSOMNUS SLEEP TECHNOLOGIES OBiomechanics: True Anatomy ProSomnus precision devices mirror the patient's dental anatomy, for comfort Biomechanics: Volume 2.6x less volume in the mouth, for better adherence Biomechanics: Lip Seal 54% more room for the lip seal, a critical aspect for successful therapy Biomechanics: Tongue Space 78% more tongue space, a critical aspect for successful therapy All comparison in relation to legacy OAT devices¹ 35 STRICTLY CONFIDENTIAL

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