atomizer vs sprayer

atomizer

noun
  • An instrument for reducing a liquid to spray or vapor for disinfecting, cooling, medical use or perfume spraying. 

sprayer

noun
  • An object used for spraying, such as a spray bottle. 

  • A device, machine or vehicle used for spraying, where sprayers are commonly used for projection of water, weed killers, crop performance materials, pest maintenance chemicals, as well as manufacturing and production line ingredients. 

  • One who sprays. 

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