How should I handle PromoCell's proliferating cells after arrival?

Short description: Unpack the box and place the T25 flask(s) in the incubator for 3 hrs (closed cap). Then check confluency under the microscope. When the density is < 70%; aspirate the medium using sterile conditions and add 5-10 ml of the appropriate Growth Medium. The cells should be subcultured according to the subcultivation protocol given in the cells' Instruction Manual once they have reached > 70 % confluency.