Exhibit 99.1

Medizone International Announces Filing of Voluntary Chapter 7 Bankruptcy Proceeding

Kalamazoo, Michigan, May 8, 2018.  Medizone International, Inc. (OTCQB:MZEI), or Medizone, manufacturer of the AsepticSure^® system, announced that it today has filed a voluntary petition in bankruptcy seeking liquidation of the Company pursuant to Chapter 7 of the United States Bankruptcy Code. The petition was filed in the United States Bankruptcy Court for the District of Nevada. It has been assigned case number 18-12662. Medizone is represented in the bankruptcy filing by Mathew C. Zirzow, Esq., of Larson Zirzow & Kaplan, LLC, Las Vegas, Nevada.

About Medizone International, Inc.

Medizone International, Inc. is focused on commercializing the AsepticSure^® System, a superior disinfectant technology compared to conventional systems or practices.  The company developed the AsepticSure^® System to combine oxidative compounds (O₃ and H₂O₂) to produce a unique mixture of free radicals (H₂O₃ known as trioxidane) with much higher oxidative potential than ozone or hydrogen peroxide alone.  After securing broad IP protection for the use of trioxidane for both healthcare and non-healthcare facility disinfecting systems and bioterrorism applications, Medizone released its AsepticSure^® System for use in Canada, and several other global markets.

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For more information, visit:www.medizoneint.com Email: operations@medizoneint.com