Volkswagen Passat 1995 Official Factory Repair Manual page 4095

A/C refrigerant system, notes
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.HA01.87.1
WARNING!
A/C system is filled with refrigerant gas which
is under pressure.
Always be careful that refrigerant does not
come in contact with your skin.
If liquid refrigerant has come in contact with
your skin or eyes:
do not rub skin or eyes
immediately flush with cool water for 15
minutes
rush to a doctor or hospital
do not attempt to treat yourself
Switch on existing exhaust/ventilation
systems when working on the refrigerant
system.
Work in a well ventilated area because
refrigerant gases are heavier than air,
displace oxygen and may cause suffocation
in areas of poor air circulation, like under the
car.
Avoid breathing refrigerant vapors. Exposure
may irritate eyes, nose and throat.
Always wear hand and eye protection (gloves
and goggles) when working around the A/C
refrigerant system.
Do not expose any component of the A/C
system to high temperatures (above 80
C/176 F) or open flames. Excessive heat will
cause a pressure increase which could burst
the system.
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