Health — acute
H304
“May be fatal if swallowed and enters airways”
Official hazard statement, UN GHS Rev. 9 (2021), Annex 3.
How this code is assigned
Summary of the classification criterion the standard itself uses to assign H304. Not a safety recommendation from CarCareTruth.
Source
H304 is a hazard statement defined in Annex 3 of the United Nations Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Revision 9 (2021). The text above is quoted verbatim from that standard.
CarCareTruth publishes the official statement and a restatement of the standard’s own classification criterion. We do not add safety recommendations, severity judgments, or interpretation of what action a user should take. For full regulatory context, consult the published standard or the product’s own Safety Data Sheet (Section 2).
Products on CarCareTruth whose published SDS includes H304
- 3-IN-ONE Garage Door Lubricant with Smart Straw (11 oz)
- 3-IN-ONE RVcare Rubber Seal Conditioner with Smart Straw (11 oz)
- 303 Products 303 Fabric Guard (32 oz)
- 303 Products 303 Graphene Nano Spray Coating
- 3D Car Care 3D Metal Polish · Heavy Duty Car Metal Polish for All Metals
- 3M Multi-Purpose Spray Lubricant 08898
- 3M Scotchgard Auto Fabric & Carpet Water Shield (4104D)
- 3M Silicone Lubricant (Dry Type)
- Adam's Polishes Adam's UV Ceramic Spray Coating
- Adam's Polishes Advanced Graphene Ceramic Coating
- Adam's Polishes Advanced Graphene Ceramic Spray Coating
- Adam's Polishes Graphene Ceramic Spray Coating
- Adam's Polishes UV Graphene Ceramic Coating
- Aquapel Glass Treatment
- Armor All Outlast Trim & Plastic Restorer
- B'laster 16-LG High-Performance White Lithium Grease
- B'laster Industrial Strength Silicone Lubricant (11 oz aerosol)
- B'laster PB-50 Pro-Grade Multi-Purpose Lubricant (8 oz aerosol)
- Ballistol Multi-Purpose Oil Aerosol
- Berryman Professional EZ DOZ-IT Penetrating Oil and Lubricant
- BG Products 406 Throttle Body & Intake Cleaner
- BG Products 44K Platinum Fuel System Cleaner
- Black Magic Tire Wet Gel
- Boeshield T-9 Rust & Corrosion Protection
- Break-Free CLP Cleaner Lubricant Preservative
- CarPro CQUARTZ Fabric 2.0 Upholstery Protector (100 mL)
- CarPro Cquartz UK 3.0
- CarPro DarkSide Tire & Rubber Sealant
- CarPro DLUX Wheel and Trim Coating 30mL
- CarPro Essence Extreme Gloss Primer
- CarPro Reflect High Gloss Finishing Polish
- CarPro TarX Tar and Adhesive Remover
- Cataclean Fuel & Exhaust System Cleaner
- Chemical Guys Bare Bones Premium Dark Shine Spray
- Chemical Guys Carbon Force Ceramic Protective Paint Coating System
- Chevron Techron Concentrate Plus Complete Fuel System Cleaner
- Chevron Techron D Concentrate Diesel Fuel System Cleaner
- CRC 05046 Battery Terminal Protector
- CRC 3-36 Multi-Purpose Lubricant & Corrosion Inhibitor
- CRC 5037 White Lithium Grease (10 oz aerosol)
- CRC Carb & Choke Cleaner (12 oz aerosol)
- CRC GDI IVD Intake Valve & Turbo Cleaner
- CRC Guaranteed to Pass Emissions System Cleaner
- CRC Heavy Duty Silicone Lubricant (11 oz aerosol)
- CRC Knock'er Loose Penetrating Solvent
- CRC MAF Sensor & Throttle Body Cleaner Bundle (11 oz + 12 oz)
- CRC MAF Sensor & Throttle Body Cleaner Twin Pack, Case of 6
- CRC Mass Air Flow Sensor Cleaner (11 oz aerosol)
- CRC Motor Treatment
- CRC Power Lube Industrial High Performance Lubricant With PTFE
- CRC Screwloose Super Penetrant
- Dr. Beasley's Glass Serum
- Dupli-Color Scratch Fix All-in-1 Universal Black
- DuPont Multi-Use High Performance Lubricant
- DuPont Silicone Lubricant Aerosol (DS0614101)
- East Penn Manufacturing East Penn Deka 00320 Battery Terminal Protection Spray
- Ethanol Shield Fuel Stabilizer
- Fluid Film Black Aerosol Undercoating (11.75 oz)
- Formula 1 Headlight Restorer & Sealant
- Gasoila Free-All Deep Penetrating Oil
- Gibbs Brand Lubricant Aerosol Penetrant
- Gold Eagle Co. STA-BIL Diesel Formula Fuel Stabilizer and Performance Improver
- Gold Eagle Co. STA-BIL Storage Fuel Stabilizer
- Goo Gone Automotive Adhesive Remover
- Goof-Off Pro Strength Overspray Remover
- Griot's Garage Black Shine Tire and Trim Coating
- Griot's Garage Ceramic Glass Coating Kit (10867)
- Gtechniq Crystal Serum Light
- Gtechniq T1 Tyre and Trim
- Gumout Professional Formula Mass Air Flow Sensor Cleaner
- Gumout Regane High Mileage Fuel System Cleaner
- Gunk Carb Medic Carburetor & Parts Cleaner (12.5 oz aerosol, M4814)
- Gunk Original Engine Brite Heavy Duty Engine Degreaser
- Gyeon Q² Fabric Coat (4.06 fl oz)
- Gyeon Q² LeatherShield EVO (50 mL)
- Gyeon Q2 Mohs EVO
- Gyeon Q² Trim EVO
- Gyeon Q²M Polish
- Hot Shot's Secret Gasoline Extreme (GE16Z)
- Howes Diesel Treat
- Jescar Power Lock Plus Polymer Sealant
- Justice Brothers JB-80 Multi-Purpose Penetrating Lubricant
- Kroil Penetrant Original Aerosol
- Liqui Moly DIJectron Gasoline Direct Injection Cleaner
- Liqui Moly Jectron Fuel Injection Cleaner
- Liqui Moly Pro-Line Gasoline System Cleaner
- Liqui Moly Pro-Line Throttle Valve Cleaner
- Liquid Wrench Lubricating Oil L212 (11 oz aerosol)
- Liquid Wrench Penetrating Oil
- Lucas Oil Deep Clean Fuel System Cleaner
- Marvel Mystery Oil Original Motor Treatment
- Meguiar's Natural Shine Protectant
- Mothers Back-to-Black High-Gloss Tire Shine
- Mothers California Gold Brazilian Carnauba Cleaner Wax
- Mothers California Gold Pure Brazilian Carnauba Wax (Step 3)
- Mothers Mag & Aluminum Polish
- Motor Medic Complete Fuel System Cleaner
- Motorcraft Carburetor Tune-Up Cleaner PM-3
- Motul Engine Clean AUTO
- Motul Fuel System Clean for Gasoline Engines
- Mouse Milk Penetrating Oil
- Nasiol ZR53 Nano Ceramic Coating
- Nu Finish The Once A Year Car Polish
- Opti-Lube XPD All-Season Diesel Fuel Additive (4 oz 8-Pack)
- PB Blaster Penetrating Catalyst
- Pentosin CHF 11S Long-Life Synthetic Hydraulic Fluid
- Permatex 80052 Fast Break Super Penetrant, 12 oz. Aerosol Can
- Permatex 81981 White Lithium Grease, 11 oz. Aerosol Can
- PRI-G Complete Gasoline Treatment
- Rain-X 2-in-1 Glass Cleaner Plus Rain Repellent (Aerosol)
- Rislone Hy-per Fuel Complete Fuel System Cleaner
- Royal Purple Max-Clean Fuel System Cleaner and Stabilizer
- Royal Purple Maxfilm Synthetic Penetrating Lubricant
- Schaeffer's Penetro 90 High Performance Penetrating Oil
- Sea Foam Deep Creep
- Sea Foam Motor Treatment
- Sea Foam Motor Treatment (3-Pack)
- Sea Foam Spray SS14 Top Engine Cleaner & Lube
- Slick Products Shine & Protectant Spray
- SONAX Tire Gloss Gel
- Sprayway SW780 Interior Detailer
- Sprayway SW946 Silicone Spray and Release Agent
- Stanadyne Performance Formula Diesel Fuel Additive
- Star brite Star Tron Enzyme Fuel Treatment
- Stens 752-930 Throttle Body and Air Intake Cleaner
- Stoner Car Care Trim Shine
- STP Complete Fuel System Cleaner
- STP Super Concentrated Fuel Injector Cleaner
- STP Ultra 5 in 1 Fuel System Cleaner
- Super Lube 31110 Multi-Purpose Synthetic Lubricant with Syncolon (PTFE)
- Tri-Flow Superior Lubricant (Aerosol, 6 oz)
- Valvoline MaxLife High Mileage Complete Fuel System Cleaner
- WD-40 Multi-Use Product (11 oz Smart Straw aerosol)
- WD-40 Specialist Rust Release Penetrant Spray
- WD-40 Specialist Water Resistant Silicone Lubricant
- WD-40 Specialist White Lithium Grease Spray, 10 OZ
- Yamaha Yamalube Outboard Fuel Stabilizer & Conditioner Plus
Listed because the manufacturer’s own published Safety Data Sheet identifies H304as a hazard statement for the product. Don’t see your product? Find its SDS.
Sources: United Nations, Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Rev. 9 (2021), Annex 3 for the hazard-statement text. Product associations are taken verbatim from Section 2 of the Safety Data Sheet published by each product’s manufacturer. CarCareTruth does not add interpretation to GHS hazard codes.