cleanser vs dry cleaner

cleanser

noun
  • Something that cleanses, such as a detergent. 

dry cleaner

noun
  • A person whose business is the dry cleaning of clothes and other fabrics. 

  • A business establishment that engages in the dry cleaning of clothes and other fabrics. 

How often have the words cleanser and dry cleaner occurred in a corpus of books? (source: Google Ngram Viewer )