Abstract: An air cooling device includes a bottle-shaped thermal cell with an outer side wall surface having equally spaced recessed fluid flow channels in a generally helical orientation. The cell contains super-absorbent polymer gel in a frozen state. The device also includes a thermally insulated chimney adapted to operatively enclose the frozen cell. The chimney has partially extended floor disposed under the bottom of the frozen cell. The enclosure defines a substantially narrow lateral spacing between the interior wall surface of the chimney and the outer side wall surface of the frozen cell, and a substantially narrow posterior spacing between the bottom of the frozen cell and the partially extended floor of the chimney. An integral fan blower draws ambient air over the outer cell wall surface including within the recessed channels against gravity to promote cooling. The narrow lateral and posterior spacings restrict the airflow therein to prolong air cooling.