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<SEC-DOCUMENT>0001209191-08-028030.txt : 20080506
<SEC-HEADER>0001209191-08-028030.hdr.sgml : 20080506
<ACCEPTANCE-DATETIME>20080506175108
ACCESSION NUMBER:		0001209191-08-028030
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080331
FILED AS OF DATE:		20080506
DATE AS OF CHANGE:		20080506

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kern Tracy A
		CENTRAL INDEX KEY:			0001296734

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12214
		FILM NUMBER:		08807516

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		8188820883

	MAIL ADDRESS:	
		STREET 1:		21622 PLUMMER ST
		CITY:			CHATSWORTH
		STATE:			CA
		ZIP:			91311

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHAD THERAPEUTICS INC
		CENTRAL INDEX KEY:			0000713492
		STANDARD INDUSTRIAL CLASSIFICATION:	ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES [3842]
		IRS NUMBER:				953792700
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		21622 PLUMMER STREET
		CITY:			CHATSWORTH
		STATE:			CA
		ZIP:			91311
		BUSINESS PHONE:		8188820883

	MAIL ADDRESS:	
		STREET 1:		21622 PLUMMER STREET
		CITY:			CHATSWORTH
		STATE:			CA
		ZIP:			91311
</SEC-HEADER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>doc5.xml
<DESCRIPTION>FORM 5 SUBMISSION
<TEXT>
<XML>
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<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2008-03-31</periodOfReport>

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        <issuerName>CHAD THERAPEUTICS INC</issuerName>
        <issuerTradingSymbol>CTU</issuerTradingSymbol>
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            <rptOwnerName>Kern Tracy A</rptOwnerName>
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            <rptOwnerStreet1>21622 PLUMMER ST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
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            <rptOwnerZipCode>91311</rptOwnerZipCode>
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            <isTenPercentOwner>0</isTenPercentOwner>
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            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
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        <nonDerivativeTransaction>
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            <deemedExecutionDate>
                <value>2007-08-31</value>
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            <transactionCoding>
                <transactionFormType>5</transactionFormType>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
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            <transactionAmounts>
                <transactionShares>
                    <value>243</value>
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                <transactionPricePerShare>
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            <transactionDate>
                <value>2008-03-28</value>
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            <deemedExecutionDate>
                <value>2008-03-08</value>
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                <transactionFormType>5</transactionFormType>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>286</value>
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                <transactionPricePerShare>
                    <value>0.46</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>401(k)</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Tracy A. Kern</signatureName>
        <signatureDate>2008-05-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----