A microfluidic delivery device comprising an upper portion , a lower portion , and a body portion that extends between and connects the upper portion and the lower portion , the device further comprising: a housing electrically connectable with a power source; a cartridge releasably connectable with the housing , wherein the cartridge comprises a reservoir for containing a fluid composition and microfluidic die in fluid communication with the reservoir , wherein the reservoir comprises a top surface , a bottom surface opposing the top surface , and a sidewall that joins the top and bottom surfaces, wherein the microfluidic die is configured to dispense substantially all of the fluid composition in a horizontal direction or a downward direction relative to horizontal, wherein horizontal is normal to the direction of gravitational force; wherein the microfluidic die is disposed on the bottom surface or the sidewall of the reservoir ; a fan connected with the housing , wherein the fan is configured to generate air flow that converges with and redirects the fluid composition dispensed from the microfluidic die in an upward direction relative to horizontal; an air flow channel extending from the fan to an air outlet of the housing , wherein the air flow channel comprises a first region disposed adjacent to the fan , a second region disposed adjacent to the air outlet , and a third region joining the first and second regions, wherein at least the second region is angled upward to the air outlet , relative to horizontal, wherein : - the air flow channel is disposed in the lower portion of the microfluidic delivery device , and beneath the microfluidic die when the device is resting on a surface or plugged into an electrical outlet, - the air flow channel is formed from at least an upper surface of the microfluidic delivery device and a lower surface of the microfluidic delivery device . a housing electrically connectable with a power source; a cartridge releasably connectable with the housing , wherein the cartridge comprises a reservoir for containing a fluid composition and microfluidic die in fluid communication with the reservoir , wherein the reservoir comprises a top surface , a bottom surface opposing the top surface , and a sidewall that joins the top and bottom surfaces, wherein the microfluidic die is configured to dispense substantially all of the fluid composition in a horizontal direction or a downward direction relative to horizontal, wherein horizontal is normal to the direction of gravitational force; wherein the microfluidic die is disposed on the bottom surface or the sidewall of the reservoir ; a fan connected with the housing , wherein the fan is configured to generate air flow that converges with and redirects the fluid composition dispensed from the microfluidic die in an upward direction relative to horizontal; an air flow channel extending from the fan to an air outlet of the housing , wherein the air flow channel comprises a first region disposed adjacent to the fan , a second region disposed adjacent to the air outlet , and a third region joining the first and second regions, wherein at least the second region is angled upward to the air outlet , relative to horizontal, - the air flow channel is disposed in the lower portion of the microfluidic delivery device , and beneath the microfluidic die when the device is resting on a surface or plugged into an electrical outlet, - the air flow channel is formed from at least an upper surface of the microfluidic delivery device and a lower surface of the microfluidic delivery device . <EOS>