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Assessment of Architectural Design Strategies for Reducing Indoor Dust Accumulation

Abstract

Indoor dust accumulation is an important environmental quality concern in buildings, as excessive dust can affect occupant health, cleanliness, maintenance requirements, and the overall usability of interior spaces. Dust can enter buildings through doors, windows, ventilation openings, footwear, outdoor activities, and air movement, with accumulation often influenced by architectural design and surrounding environmental conditions. In areas with high levels of outdoor dust, poor building detailing and inadequate control measures can further increase indoor dust levels. Architectural strategies that limit dust entry and facilitate effective cleaning can therefore contribute to healthier and more manageable indoor environments. This study assesses architectural design strategies for reducing indoor dust accumulation by examining the relationship between building configuration, material selection, ventilation, and dust infiltration. The assessment considers factors such as building orientation, entrance design, window placement, ventilation openings, floor finishes, wall surfaces, circulation patterns, and spatial zoning. Particular attention is given to how these design characteristics influence the entry, movement, and deposition of dust within occupied spaces. Entrance design is examined as an important point of control because external dust can be introduced directly into buildings through pedestrian movement and air exchange. The study considers the potential contribution of entrance setbacks, covered entrances, vestibules, entrance mats, transition spaces, and appropriate surface materials in reducing the transfer of outdoor dust into interior areas. The relationship between external site conditions, pedestrian circulation, landscaping, and building entrances is also considered in understanding how architectural planning can minimize dust infiltration. Natural ventilation is another important factor because airflow can either remove airborne particles or transport dust into occupied spaces. The study therefore examines the influence of window configuration, ventilation openings, cross-ventilation, building orientation, and prevailing wind conditions on indoor dust movement. Appropriate placement and design of openings can help reduce direct exposure to dusty outdoor air while maintaining adequate ventilation. The selection of interior finishes that are less likely to retain dust is also considered as part of an integrated approach to indoor environmental management. The accumulation of dust can increase cleaning requirements and contribute to poor indoor air quality, particularly when particles become suspended through occupant movement or air circulation. Building layouts with excessive horizontal surfaces, difficult-to-clean corners, poorly detailed junctions, and inappropriate material finishes may increase dust retention. Addressing these issues through design for maintainability, effective spatial organization, appropriate material selection, and accessible cleaning surfaces can improve the long-term environmental performance of buildings. The study aims to identify architectural strategies that can effectively reduce indoor dust accumulation while maintaining ventilation, accessibility, and occupant comfort. The findings are expected to support the integration of dust-control considerations into building design through improved entrance planning, ventilation design, material selection, spatial organization, and site planning. The research can contribute to healthier indoor environments, reduced maintenance demands, improved indoor air quality, and more resilient architectural responses in areas affected by high levels of outdoor dust.

Keywords: Indoor dust, Dust accumulation, Architectural design, Indoor air quality, Dust infiltration, Entrance design, Natural ventilation, Building envelope, Floor finishes, Material selection, Spatial planning, Site planning, Building maintenance, Healthy indoor environments.