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The first mini-split system was sold in 1961 by Toshiba in Japan, and the first wall-mounted mini-split air conditioner was sold in 1968 in Japan by Mitsubishi Electric, where small home sizes motivated their development. The Mitsubishi model was the first air conditioner with a cross-flow fan.
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.
Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...
Researchers are looking into ways to delay menopause and ovarian aging. What to know about two new studies that may impact the future of menopause.
For the first time, a pug has won the Best in Show title at the National Dog Show. Vito the pug beat over 1,900 other dogs at the show, which is hosted by the American Kennel Club.
California Gov. Gavin Newsom said the state will provide rebates to residents if President-elect Donald Trump's incoming administration does away with a federal tax credit for electric vehicles.
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