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However, their development is constrained by a design trade\u2010off between achieving high porosity for efficient flow transmission and maintaining a conductive network for effective charge transport. To overcome this, a bridged conductive nanofibrous membrane (BCNM) by linking polypyrrole\u2010coated nanofibers via self\u2010assembled polypyrrole nanowires is developed. This dual\u2010state network establishes continuous electron pathways while preserving multiscale porous channels, orchestrating air permeation, particulate capture, and electrothermal sterilization for all\u2010in\u2010one air purification. Leveraging this synergy, BCNM captures 98.79% of &gt;0.3\u00a0\u00b5m particles under an ultra\u2010low pressure drop of 76\u00a0Pa and instantaneously self\u2010heats to 100\u00a0\u00b0C at low power to sterilize 99.49% of airborne bacteria. These performances compare favorably with leading conductive porous materials in both filtration performance and energy economy. A proof\u2010of\u2010concept solar\u2010powered purifier incorporating the BCNM outperforms existing purification technologies in terms of filtration, sterilization, energy efficiency, and cost. This work offers an innovative material\u2013structure\u2013function paradigm for developing energy\u2010interactive porous materials, with broad potential in smart filtration, biomedical protection, and sustainable energy systems.<\/jats:p>","DOI":"10.1002\/advs.202508650","type":"journal-article","created":{"date-parts":[[2025,11,6]],"date-time":"2025-11-06T10:26:15Z","timestamp":1762424775000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Bridged Conductive Nanofibrous Membrane Overcoming the Porosity\u2010Conductivity Trade\u2010Off for Electrothermal Air Purification"],"prefix":"10.1002","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5554-2099","authenticated-orcid":false,"given":"Xiaoxue","family":"Yao","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering City University of Hong Kong  83 Tat Chee Avenue, Kowloon Hong Kong 999077 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