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8-K - FORM 8-K FOR 09-29-2012 - KNOW LABS, INC.form_8-k.htm

Exhibit 16.1


October 4, 2012


Securities and Exchange Commission

100 F Street, NW

Washington, D.C. 20549


Re:        Visualant, Inc.


We have read the statements included under Item 4.01 of Form 8-K to be filed by Visualant, Inc.  We agree with the statements made in response to that Item insofar as they relate to our Firm.


Very truly yours,


/s/ Madsen & Associates CPA’s, Inc.


Madsen & Associates CPA’s, Inc.

Murray, UT 84107