This work studies the simultaneous effects of helical force. rotation and porosity on the appearance of stationary convection in a binary mixture of a ferrofluid and on the size of convection cells. We have determined the analytical expression of the Rayleigh number of the system as a function of the dimensionless parameters. The effect of each parameter on the system is studied. https://yeswellneses.shop/product-category/bathroom-cleaners/