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Absorption cell and manufacturing method thereof

  • US 20120145007A1
  • Filed: 11/01/2011
  • Published: 06/14/2012
  • Est. Priority Date: 12/10/2010
  • Status: Active Grant
First Claim
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1. An absorption cell comprising:

  • a first absorption layer formed of a first absorbent; and

    a second absorption layer formed of a second absorbent having a higher density than the first absorbent and coated on the surface of the first absorption layer so as to prevent generation of dust particles from the first absorption layer.

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