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Cover - USD ($)
 12 Months Ended
Dec. 31, 2021
Mar. 29, 2022
Jun. 30, 2021
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2021    
Current Fiscal Year End Date --12-31    
Entity File Number 000-54286    
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 Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 15,308,000
Entity Common Stock, Shares Outstanding   7,784,444  
Documents Incorporated by Reference None    
Auditor Firm ID 3627    
Auditor Name Sadler, Gibb    
Auditor Location Draper, UT    
Common Stock [Member]      
Title of 12(b) Security Common Stock, $0.00001 par value    
Trading Symbol CEAD    
Security Exchange Name NASDAQ    
Warrant [Member]      
Title of 12(b) Security Warrants to purchase common stock    
Trading Symbol CEADW    
Security Exchange Name NASDAQ