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Registered
Join Date: Jul 2005
Location: Sydney, Australia
Posts: 1,420
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They stop the wearer from infecting others - it catches what is breathed out.
That's why anyone in an operating theatre wears one - to help protect the patient.
Tim
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Swapped my WRX Sti MY02 for a Porsche 911SC '83
Keep buying parts to make it look older.
Mid life crisis is now in its 12th year.
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