<SEC-DOCUMENT>0001493152-26-015912.txt : 20260409
<SEC-HEADER>0001493152-26-015912.hdr.sgml : 20260409
<ACCEPTANCE-DATETIME>20260409170018
ACCESSION NUMBER:		0001493152-26-015912
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260406
FILED AS OF DATE:		20260409
DATE AS OF CHANGE:		20260409

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Miller William B
		CENTRAL INDEX KEY:			0001704980
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41266
		FILM NUMBER:		26852356

	MAIL ADDRESS:	
		STREET 1:		C/O SUNLIGHT FINANCIAL HOLDINGS INC.
		STREET 2:		101 N. TRYON STREET, SUITE 1000
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28246

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:		385 S. PIERCE AVE, STE C
		CITY:			LOUISVILLE
		STATE:			CO
		ZIP:			80027
		BUSINESS PHONE:		303-993-5271

	MAIL ADDRESS:	
		STREET 1:		385 S. PIERCE AVE, STE C
		CITY:			LOUISVILLE
		STATE:			CO
		ZIP:			80027

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

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-04-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001704980</rptOwnerCik>
            <rptOwnerName>Miller William B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O CEA INDUSTRIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>385 SOUTH PIERCE AVENUE SUITE C</rptOwnerStreet2>
            <rptOwnerCity>LOUISVILLE,</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80027</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-04-06</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>363636</value>
                </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>363636</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>363636</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">RSUs convert into common stock on a one-for-one basis.</footnote>
        <footnote id="F2">25% of the RSUs (90,909 shares) vest on April 6, 2027, with the remaining RSUs vesting in equal quarterly installments thereafter through April 6, 2030, subject to the Participant's continued service with the Company through each applicable vesting date. The RSUs were granted pursuant to the CEA Industries Inc. 2026 Inducement Plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Jordan J. Saddoris, Attorney-in-Fact</signatureName>
        <signatureDate>2026-04-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
