Figure 1: Motion capture tags, accelerometer sensors layout and game setup.

We present a novel multisensory interactive system that integrates mid-air haptic feedback with ocean-themed visual media to foster sustainability awareness. Using focused ultrasound, the system allows users to ”feel” environmental phenomena such as waves, coral reefs, and pollution without wearing devices or touching surfaces. Designed for deployment in public and mobile contexts such as exhibitions, science centers, and mixed-reality installations, the system demonstrates how contactless haptics can extend emotional engagement with environmental issues beyond traditional media. A preliminary study with ten participants showed that mid-air haptics amplified emotional responses and strengthened intentions toward pro-environmental action. This work contributes to mobile and ubiquitous interaction research by exploring how multisensory feedback can make abstract sustainability challenges more tangible and engaging in everyday contexts.

Mid-air haptic technology enables touchless interaction through focused ultrasound and holds promise for inclusive design in mobile and ubiquitous multimedia systems. However, accessibility aspects remain largely unexplored. This poster introduces an accessibility-centered framework for mid-air haptic interaction, building on prior reviews of user experience and technical design. We systematically analyzed 42 studies published between 2014 and 2024 and conducted twelve expert interviews, including accessibility specialists and a visually impaired participant. The analysis highlights three main challenges: low stimulus clarity, limited multimodal feedback, and insufficient personalization. Our proposed framework addresses these gaps through four design dimensions—perceptual optimization, multimodal integration, spatial configuration, and individual calibration. By integrating literature and expert insights, this work advances a structured foundation for accessible mid-air haptic systems and identifies future research directions toward inclusive, touchless interaction in mobile, public, and mixed-reality contexts.