PAPR (powered air-purifying respirator) breathing tubes direct filtered air from the blower to the headgear. Breathing tubes are compatible with blowers and headgear of the same brand and series. Covers keep blower units clean when painting or performing other activities that create blowback that can dirty the unit. PAPRs provide safe, breathable air to workers in areas with compromised air quality. A blower passes ambient air through a filter and a breathing tube to the workers headgear.