Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the use in this Post-Effective Amendment No. 1 to Form S-1 of IIOT-OXYS, Inc. of our report dated April 6, 2021, relating to our audits of the December 31, 2020 and 2019 consolidated financial statements of IIOT-OXYS, Inc., which are appearing in the Prospectus, which is part of this Registration Statement.
We also consent to the reference to our firm under the caption "Experts" in such Prospectus.
Haynie & Company
Salt Lake City, Utah
April 8, 2021