TagHEPA Filters(10)

By Amber Katz Special to At Home in the Northwest Wildfire season has begun early this year in King County, with smoke expected to be even worse than last year. This reality makes preparing the home for health and safety reasons essential. “My whole state is in the forecast for this summer being in the

By Tim Heffernan Updated March 7, 2023   Photo: Connie Park FYI We have tested and reviewed the Molekule Air Pro and Air Mini+, and will be reviewing several other purifiers soon. March 2023 [Sign up for Wirecutter’s newsletter to get independent reviews, expert advice, and the very best deals sent straight to your inbox.]Air purifiers

By Gus Simonds Special to The Times Enough sweatpants and Zoom meetings already. Employees who have worked from home since March because of COVID-19 want to get back to the office to enjoy the face-to-face camaraderie and collaboration with mentors and teammates. Parents are anticipating getting their children back into the classroom. Winter is approaching, making

$1,000 can raise a class’s test scores by as much as cutting class size by a third. By Matthew Yglesias@mattyglesiasmatt@vox.com   An emergency situation that turned out to be mostly a false alarm led a lot of schools in Los Angeles to install air filters, and something strange happened: Test scores went up. By a

State Budget (SENATE BILL 6168, Sec. 603) (42) $50,000 of the general fund—state appropriation for fiscal year 2021 is provided solely for the department of environmental and occupational health sciences to provide an air quality report. The report will study the relationship between indoor and outdoor ultrafine particle air quality at sites with vulnerable populations,

Parham Azimi, Dan Zhao, Brent Stephens Department of Civil, Architectural and Environmental Engineering, Illinois Institute of Technology, Chicago, IL, USA Received 31 July 2014, Revised 26 August 2014, Accepted 3 September 2014, Available online 4 September 2014. Abstract This work uses 194 outdoor particle size distributions (PSDs) from the literature to estimate single-pass heating, ventilating, and air-conditioning (HVAC) filter removal efficiencies for