Affymetrix to Webcast Presentations at Two November Financial Conferences

  
    
  
  
    
      Affymetrix, Inc. (Nasdaq:AFFX) today announced that company management 
      will provide an overview of Affymetrix and outline future growth 
      opportunities at two upcoming financial conferences.
    
    
      Doug Farrell, Vice President of Investor Relations, will present at the 
      JPMorgan Small/Mid Cap Conference in Boston, MA. A live transmission of 
      the presentation will take place at 10:20 a.m. PT (1:20 p.m. ET) on 
      Wednesday, November 15, 2006. An archived webcast will be available for 
      30 days.
    
    
      Greg Schiffman, Executive Vice President and Chief Financial Officer, 
      will present at the Lehman Small Cap Conference in Dana Point, 
      CA. A live transmission of the presentation will take place at 11:20 
      a.m. PT (2:20 p.m. ET) on Friday, November 17, 2006. An archived webcast 
      will be available for 30 days.
    
    
      To access the live webcast or archived presentation, find the 
      "Investors" link in the "Resources for" drop-down menu on www.affymetrix.com.
    
    
      About Affymetrix
    
    
      Affymetrix scientists invented the world's first high-density microarray 
      in 1989 and began selling the first commercial microarray in 1994. Since 
      then, Affymetrix GeneChip(R) technology has become the industry standard 
      in molecular biology research. Affymetrix technology is used by the 
      world's top pharmaceutical, diagnostic and biotechnology companies as 
      well as leading academic, government and not-for-profit research 
      institutes. More than 1,400 systems have been installed around the world 
      and more than 7,000 peer-reviewed papers have been published using the 
      technology. Affymetrix' patented photolithographic manufacturing process 
      provides the most information capacity available today on an array, 
      enabling researchers to use a whole-genome approach to analyzing the 
      relationship between genetics and health. Affymetrix is headquartered in 
      Santa Clara, Calif., with manufacturing facilities in Sacramento, 
      Calif., and Bedford, Mass. The company maintains important sales and 
      marketing operations in Europe and Asia and has about 1,100 employees 
      worldwide. For more information about Affymetrix, please visit the 
      company's website at www.affymetrix.com.
    
    
      NOTE: Affymetrix, the Affymetrix logo, and GeneChip are registered 
      trademarks owned or used by Affymetrix Inc.
    
  
Affymetrix, Inc. (Nasdaq:AFFX) today announced that company
management will provide an overview of Affymetrix and outline future
growth opportunities at two upcoming financial conferences.

   Doug Farrell, Vice President of Investor Relations, will present
at the JPMorgan Small/Mid Cap Conference in Boston, MA. A live
transmission of the presentation will take place at 10:20 a.m. PT
(1:20 p.m. ET) on Wednesday, November 15, 2006. An archived webcast
will be available for 30 days.

   Greg Schiffman, Executive Vice President and Chief Financial
Officer, will present at the Lehman Small Cap Conference in Dana
Point, CA. A live transmission of the presentation will take place at
11:20 a.m. PT (2:20 p.m. ET) on Friday, November 17, 2006. An archived
webcast will be available for 30 days.

   To access the live webcast or archived presentation, find the
"Investors" link in the "Resources for" drop-down menu on
www.affymetrix.com.

   About Affymetrix

   Affymetrix scientists invented the world's first high-density
microarray in 1989 and began selling the first commercial microarray
in 1994. Since then, Affymetrix GeneChip(R) technology has become the
industry standard in molecular biology research. Affymetrix technology
is used by the world's top pharmaceutical, diagnostic and
biotechnology companies as well as leading academic, government and
not-for-profit research institutes. More than 1,400 systems have been
installed around the world and more than 7,000 peer-reviewed papers
have been published using the technology. Affymetrix' patented
photolithographic manufacturing process provides the most information
capacity available today on an array, enabling researchers to use a
whole-genome approach to analyzing the relationship between genetics
and health. Affymetrix is headquartered in Santa Clara, Calif., with
manufacturing facilities in Sacramento, Calif., and Bedford, Mass. The
company maintains important sales and marketing operations in Europe
and Asia and has about 1,100 employees worldwide. For more information
about Affymetrix, please visit the company's website at
www.affymetrix.com.

   NOTE: Affymetrix, the Affymetrix logo, and GeneChip are registered
trademarks owned or used by Affymetrix Inc.