A group of students from the University of California, Riverside is hoping to make yard work more eco-friendly with the development of a simple add-on contraption that can remove 93 percent of pollutants from gas lawnmower exhaust.
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A couple of UCLA scientists have improved automobile cabin air filters with the design of a new high-efficiency cabin air (HECA) filter that blocks the majority of ultrafine particles and simultaneously allows carbon dioxide to escape.
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