Air purifiers spiked consumer interest post-pandemic as people were interested in cleaner air that lowered complications from illnesses such as COVID-19.
June 19, 2023 – Stepping into the house, the first thing you notice is the air: the purity and odorlessness of it. There’s no rush of a sneeze from your allergies that bothered you earlier that morning. You soon find the cause of this reprieve: three portable air purifiers that Olivia Raya, customer service team lead of the air purifier company Rabbit Air, has used for years in her home.
The CDC then updated its guidance on ventilations in buildings in May, raising the minimum filter recommendation. Maintaining that level requires replacing filters as manufacturers recommend.Karrie Chan and her husband Edwin Cheung launched Rabbit Air in 2004 out of concern about the air their child breathes. Starting out in their garage, the co-founders worked to improve the quality through user feedback.
The C-R box has four walls of MERV-13 filters, a standard box fan on top, and relies on tape to hold the purifier together. A cardboard box top with a circular opening allows the air to get pulled in through the fan, pushed through the filters, and released as purified air. Last year, Prather held an initiative to build 250 C-R boxes as part of the air filtration work at UCSD.
The C-R box, when the fan is running at a low level, makes no sound at all. At a high level, it sounds like a regular fan at high speed and can filter the air more quickly. Since 2020, the board has added electronic air cleaners to the same regulations required for commercial portable indoor air cleaning devices.
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