A Xiaomi Smart Air Purifier 2S filter, photographed as part of open-source documentation on consumer air-cleaning devices; the growing scrutiny around such units raises questions about how much real-world protection they actually provide against respiratory infections. Photo Source: Wikimedia Commons | Author: Z22 | License: CC BY-SA 4.0

Air Cleaner Evidence Gap: Only 9% Of Nearly 700 Studies Tested Human Health Outcomes.

Air Cleaning Technologies: What Research Really Shows About Effectiveness Research Review Most Air Cleaning Devices Lack Real-World Health Evidence New research review of 672 studies reveals significant gaps between air cleaning technology marketing claims and scientific proof for human infection prevention 📅 August 5, 2025 🔬 Peer-reviewed study ⏱️ 6 min read Consumer air-cleaning devices are widely purchased for homes and schools with expectations of virus protection. New research shows most lack

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An anchovy’s gill arch system, studied by University of Bonn researchers, shows how layered biological structures guide particles away from clogging—an insight now adapted to filter microplastic fibers from washing machine wastewater. Could nature’s long-tested designs hold practical answers to everyday pollution challenges? Photo source: University of Bonn / Jens Hamann

Fish gill filter catches 99.6% of microplastics washing machines send into sewage systems

Fish-Inspired Microplastic Filter 🔬 BIOMIMICRY SOLUTION Fish Gills Solve the Microplastic Washing Machine Problem Wastewater from washing machines is a major source of microplastics—tiny plastic particles suspected of harming human and animal health. Researchers at the University of Bonn developed a filter to address this problem, inspired by the gill arch system in fish. In

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