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| || | || | || | ||  |  _ \\   |  ___||  \ \\/ // 
| '--' || | || | ||  | |_| ||  | ||__     \   //  
| .--. || | \\_/ ||  | .  //   | ||__     / . \\  
|_|| |_||  \____//   |_|\_\\   |_____||  /_//\_\\ 
`-`  `-`    `---`    `-` --`   `-----`   `-`  --`

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Text this: Deposition of aerosol particles in ductwork