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<p>Automotive cabin air filtration systems are critical for ensuring occupants’ health and comfort by mitigating exposure to particulate matter (PM), volatile organic compounds (VOCs), harmful gases, and microbial pathogens. This review comprehensively examines the development, design, and performance of automotive cabin filters (ACF), focusing on their role in addressing the unique challenges of vehicle cabin air quality. In-cabin air quality is governed by cabin air change rate, which typically ranges from 10&#xa0;h⁻¹ in sealed, stationary vehicles to 150–250&#xa0;h⁻¹ under cross-ventilation at higher speeds. The article examines the dynamics of air circulation, emphasizing how passenger activities, vehicle speed, and ventilation settings affect the concentrations of pollutants within the passenger compartment. In the context of actual driving situations, such as fluctuating flow rate/face velocity and pollution levels, key performance metrics, such as filtering efficiency, pressure drop, energy consumption, and filter lifespan, are examined. The primary conclusions of the review show that face velocity, carbon loading, pleat shape, dust accumulation, and humidity, rather than only media type, determine the efficacy of ACF. Under actual driving conditions, high airflow (3.33–10&#xa0;m³/min) accelerates carbon saturation, increases pressure drop, and decreases efficiency at the MPPS (~ 300&#xa0;nm), resulting in a sharp drop in particle and gaseous pollution removal. This article highlights the significance of novel materials, such as metal-organic frameworks, and a multi-objective optimization technique for balancing durability, energy use, and efficiency, by summarizing current research. This paper emphasize the need for ongoing improvements in ACF technology to meet stringent air quality requirements across various vehicle settings.</p>

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A critical review on design and development strategies of automotive cabin air filter

  • 期刊论文

  • 发表日期：

    2026年2月9日

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  • Ajay Kumar,
  • Arunangshu Mukhopadhyay,
  • Mukesh Bajya

摘要

Automotive cabin air filtration systems are critical for ensuring occupants’ health and comfort by mitigating exposure to particulate matter (PM), volatile organic compounds (VOCs), harmful gases, and microbial pathogens. This review comprehensively examines the development, design, and performance of automotive cabin filters (ACF), focusing on their role in addressing the unique challenges of vehicle cabin air quality. In-cabin air quality is governed by cabin air change rate, which typically ranges from 10 h⁻¹ in sealed, stationary vehicles to 150–250 h⁻¹ under cross-ventilation at higher speeds. The article examines the dynamics of air circulation, emphasizing how passenger activities, vehicle speed, and ventilation settings affect the concentrations of pollutants within the passenger compartment. In the context of actual driving situations, such as fluctuating flow rate/face velocity and pollution levels, key performance metrics, such as filtering efficiency, pressure drop, energy consumption, and filter lifespan, are examined. The primary conclusions of the review show that face velocity, carbon loading, pleat shape, dust accumulation, and humidity, rather than only media type, determine the efficacy of ACF. Under actual driving conditions, high airflow (3.33–10 m³/min) accelerates carbon saturation, increases pressure drop, and decreases efficiency at the MPPS (~ 300 nm), resulting in a sharp drop in particle and gaseous pollution removal. This article highlights the significance of novel materials, such as metal-organic frameworks, and a multi-objective optimization technique for balancing durability, energy use, and efficiency, by summarizing current research. This paper emphasize the need for ongoing improvements in ACF technology to meet stringent air quality requirements across various vehicle settings.