Hazard Class 2 Gases (Under Pressure)

Type	Common Examples	Domestic		International	Domestic Mail Pub 52	Maximum Amount Permitted in Mail	Additional Information
Type	Common Examples	Air	Surface	International	Domestic Mail Pub 52	Maximum Amount Permitted in Mail	Additional Information
Flammable	Hairspray (in aerosol can)	N	Y	N	342.2c	342.3	ORM-D or consumer commodity only.
	Propane, camp stove fue	N	Y	N	342.22c	342.3	ORM-D or consumer commodity only.
	Spray paint (in aerosol can)	N	Y	N	342.22f	342.3	ORM-D or consumer commodity only.
Non-Flammable	Fire extinguishers	Y	Y	N	342.22d	342.3	Fire extinguishers containing methyl bromide prohibited.
Non-Flammable	Nitrogen, compressed air	Y*	Y	Nvvv	342.2b	342.3v	ORM-D or consumer commodity only.
Toxic	Ammonia, chlorine, carbon monoxide	N	N	N	342.21	None	All toxic gases are prohibited.