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Cover
9 Months Ended
Sep. 30, 2021
Cover [Abstract]  
Document Type S-1/A
Amendment Flag true
Amendment Description AMENDMENT NO. 1
Entity Registrant Name CEA Industries Inc.
Entity Central Index Key 0001482541
Entity Tax Identification Number 27-3911608
Entity Incorporation, State or Country Code NV
Entity Address, Address Line One 385 South Pierce Avenue
Entity Address, Address Line Two Suite C
Entity Address, City or Town Louisville,
Entity Address, State or Province CO
Entity Address, Postal Zip Code 80027
City Area Code (303)
Local Phone Number 993-5271
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company false