DIY Box Fan Filter – MERV 13 versus HEPA Air Purifier
Sunday, 18 November 2018
DIY Box Fan Filter & Air Quality Experiment Here in San Francisco and surrounding areas kids are stuck indoors during this smoke wave caused by our wild fires with little or no air filtration. In San Francisco the school buildings are older and are not setup to have building wide air filtration. Nor can cash-strapped
- Published in Environmental Consulting, News
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