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  2. Workplace hazard controls for COVID-19 - Wikipedia

    en.wikipedia.org/wiki/Workplace_hazard_controls...

    The CDC suggests that, in non-healthcare settings, building ventilation should be brought up to 5 air changes per hour, along with the use of MERV-13 filters, the use of air purifiers (air cleaners), and upper-room Ultraviolet germicidal irradiation (UVGI) to reduce the odds of infection and people coming down with COVID-19.

  3. Air purifier - Wikipedia

    en.wikipedia.org/wiki/Air_purifier

    An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .

  4. Corsi–Rosenthal Box - Wikipedia

    en.wikipedia.org/wiki/Corsi–Rosenthal_Box

    An example of a homemade unit. The Corsi–Rosenthal Box is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [1] or five [2] [3] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.

  5. Costco Business Center: Locations, FAQs, and Why You ... - AOL

    www.aol.com/shopped-costco-business-center...

    Most regular Costco warehouses open their doors at 10 a.m., but Costco Business Centers appeal to early birds, with most opening at 7 a.m. Monday-Saturday and 8 a.m. on Sunday.

  6. 145 Costco Workers Just Tested Positive for COVID-19 in ... - AOL

    www.aol.com/news/145-costco-workers-just-tested...

    Almost 150 employees have tested positive for COVID-19 since the end of December at one Costco location in Washington, but the warehouse in Yakima remains open.In a response to 68 employees ...

  7. Costco employees berate retailer over coronavirus response - AOL

    www.aol.com/news/costco-employees-berate...

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  8. Respirator - Wikipedia

    en.wikipedia.org/wiki/Respirator

    In 1848, the first US patent for an air-purifying respirator was granted to Lewis P. Haslett [5] for his 'Haslett's Lung Protector,' which filtered dust from the air using one-way clapper valves and a filter made of moistened wool or a similar porous substance. [6] Hutson Hurd patented a cup-shaped mask in 1879 which became widespread in ...

  9. Trader Joe's, Costco top list of grocery stores with best ...

    www.aol.com/news/trader-joes-costco-top-list...

    The findings revealed that Whole Foods, Costco and Trader Joe's have made the most positive impressions on customers with the changes they've implemented. Trader Joe's, Costco top list of grocery ...

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