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Cover
6 Months Ended
Jun. 30, 2021
Cover [Abstract]  
Document Type S-1
Amendment Flag false
Entity Registrant Name CLEAN ENERGY TECHNOLOGIES, INC.
Entity Central Index Key 0001329606
Entity Tax Identification Number 20-2675800
Entity Incorporation, State or Country Code NV
Entity Address, Address Line One 2990 Redhill Ave
Entity Address, City or Town Costa Mesa
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92626
City Area Code 949
Local Phone Number 273-4990
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company false