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HEPA Filter 99.95% Performance Test | Smart Air Blast Air Purifier

This video explains the rigorous process Smart Air uses to test and validate its HEPA filters meet the 99.95% filtration efficiency criteria. Paddy from the Smart Air Lab explains how we use the Met One GT-521 to measure 0.3 micron particle count and verify the HEPA filter meets the grade required. Smart Air is a social enterprise dedicated to helping people protect themselves from the harms of air pollution through education and low-cost purifiers. • Subscribe:    / smartairfilters   • LinkedIn:   / smar.  . • Facebook:   / smartairfilters   • Twitter:   / smartairfilters   • Instagram:   / smartairfil.  . • Volunteer: https://smartairfilters.com/en/volunt... • Shop: https://smartairfilters.com/en/shop/ For business enquiries, email us directly at [email protected].