Requirements   

ANIMATION 1:  CUP OF WATER WITH DISSOLVED IN MULTI-COLOURED PARTICLES TO INDICATE UNWANTED CONTAMINANTS, SHOWN MOVING AROUND A CUP

ANIMATION 2:  
A RECTANGULAR BOX ANIMATION OF REVERSE OSMOSIS; CONTAMINATED WATER ON ONE SIDE (VISUALIZED THROUGH MULTI-COLOURED CIRCLES MOVING WITHIN THE WATER) SHOWN PASSING THROUGH A THIN, SPONGE-LIKE MEMBRANE (INDICATED WITH AN ARROW AND CHANGING VOLUME OF WATER) INTO OTHER SIDE OF MEMBRANE WHERE WATER IS BLUE AND DOES NOT CONTAIN PARTICLES