The breathable air supplied to the user by PPE must be obtained by appropriate means, for example after filtration of the polluted air through PPE or by supply from an external unpolluted source.
Caithfear an t-aer inanálaithe arna soláthar ag TCP don úsáideoir a fháil trí mhodhanna iomchuí, mar shampla, tar éis scagachán an aeir thruaillithe tríd TCP nó trí sholáthar ó fhoinse sheachtrach neamhthruaillithe.