an alarm designed to give the user prompt warning of an approaching failure in the supply of breathable gaseous mixture (see point 2.8);
aláram atá ceaptha rabhadh mear a thabhairt don úsáideoir nuair is dócha go dteipfidh ar sholáthair an aermheascáin ghásraigh inanálaithe (féach pointe 2.8);