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Theres a special kind of horror that comes with realizing youve been running your air purifier with a plastic-wrapped HEPA filter

Our Experts We also tapped the following four medical and air quality experts for advice: Peter Duncanson, an Arlington, Tennessee-based senior director of training and development at ServiceMaster Restore, a restoration service provider Dr

They are small, discreet and comfortable to carry

in chemical engineering from Northeastern University, he applies his knowledge of filtration processes and fluid dynamics to our research, developing our latest protocol for evaluating the performance of air purifiers

Long-standing brand heritage