<SEC-DOCUMENT>0001641172-25-021466.txt : 20250729
<SEC-HEADER>0001641172-25-021466.hdr.sgml : 20250729
<ACCEPTANCE-DATETIME>20250729214233
ACCESSION NUMBER:		0001641172-25-021466
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250727
FILED AS OF DATE:		20250729
DATE AS OF CHANGE:		20250729

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mariathasan Marion
		CENTRAL INDEX KEY:			0001905775
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41266
		FILM NUMBER:		251163756

	MAIL ADDRESS:	
		STREET 1:		2373 S OLIVE ST
		CITY:			DENVER
		STATE:			CO
		ZIP:			80224

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CEA Industries Inc.
		CENTRAL INDEX KEY:			0001482541
		STANDARD INDUSTRIAL CLASSIFICATION:	AGRICULTURE SERVICES [0700]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				273911608
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			0430

	BUSINESS ADDRESS:	
		STREET 1:		1780 55TH STREET, SUITE C
		CITY:			BOULDER
		STATE:			CO
		ZIP:			80301
		BUSINESS PHONE:		303-993-5271

	MAIL ADDRESS:	
		STREET 1:		1780 55TH STREET, SUITE C
		CITY:			BOULDER
		STATE:			CO
		ZIP:			80301

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Surna Inc.
		DATE OF NAME CHANGE:	20100128
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-07-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001482541</issuerCik>
        <issuerName>CEA Industries Inc.</issuerName>
        <issuerTradingSymbol>VAPE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001905775</rptOwnerCik>
            <rptOwnerName>Mariathasan Marion</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>385 S. PIERCE AVE, STE C</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOUISVILLE,</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80027</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9628</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock - RSU</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-07-27</value>
            </transactionDate>
            <deemedExecutionDate>
                <footnoteId id="F2"/>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>40533</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>40533</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40533</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents the grant of 40,533 restricted stock units issued under the Company's 2025 Equity Incentive Plan (&quot;the Plan&quot;) as an equity severance award.</footnote>
        <footnote id="F2">The Restricted Stock Units will vest (i) only if the Recipient's employment as a director has been terminated by resignation or other wise before the close of business on August 1, 2025, and (ii) on the next business day after the approval of the Plan by the shareholders of the Company pursuant to state and federal law.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Marion Mariathasan</signatureName>
        <signatureDate>2025-07-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
