Compact respirator assembly

A compact blower assembly comprising:

• an impeller configured to pull a volume of air into the blower assembly through a blower assembly air inlet;
• a blower scroll configured to receive the volume of air at a blower scroll air inlet and direct the volume of air toward a blower scroll air outlet, the blower scroll comprising:
• a first blower scroll component comprising at least a portion of a blower frame element and defining the blower scroll air inlet, wherein the blower frame element is configured so as to define at least a portion of an exterior of the blower assembly;
• a second blower scroll component comprising a scroll cover secured to the blower frame element so as to define an internal scroll flow chamber, wherein the internal scroll flow chamber comprises a cavity positioned between the scroll cover and the portion of the blower frame element corresponding to the first blower scroll component;
• and
• wherein the blower scroll is configured to house the impeller within the internal scroll flow chamber;
• wherein the blower scroll air inlet comprises an opening extending through a thickness of the blower frame element, wherein the blower assembly is configured such that the blower scroll air inlet embodies the blower assembly air inlet;
• and
• wherein the scroll cover comprises an external back surface having an at least substantially planar configuration, the external back surface defining a portion of an exterior of the scroll cover that is configured to engage at least a portion of a printed control board assembly.