A livestock blow dryer includes a blower housing having an inlet opening and an outlet opening with a slot adjacent to the inlet opening. Within the blower housing are two blower motors for blowing air through the outlet opening. The blow dryer includes a filter cartridge adapted to be inserted into the slot so that air coming through inlet opening goes through the filter. The filter cartridge includes an outer perimeter section, a filter section within the outer perimeter, and a tab attached to the cartridge for inserting and removing the filter cartridge to and from the slot. The livestock blow dryer includes a frusto-conical shaped nozzle adapted to cover the outlet opening. The end of the nozzle has a holding member for attaching a hose to the nozzle.