Unicode conversion using tudyHTML

Hello,
   
  Our application uses tidyHTML to clean-up the contents of an HMTL control object. However, there are cases when after passing a string to tidyHTML, some characters are converted to question mark (?).
   
  For instance, the rightward arrow →
  (f you are using Word document, the short cut key is 2192, Alt-X).
   
  Is there a way to use tidyHTML such that it will return back the original character?  If not, what is the best way to handle this?
   
  Thanks! :)
   
   

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