type of food being cooked and or the style of cooking e g grilling or rotisserie for example a charcoal based filtering element 50 may be inserted within chamber 48 to diffuse the smoke fumes and contaminants 300 resulting from grilling fish filter unit 12 also includes a ventilation system 60 which has a rotating fan 70 and motor 65 both shown in phantom disposed within the ventilation housing 32 of intake hood 30 see fig3 as can be appreciated fan 70 is rotated so as to create a negative air flow which draws the smoke fumes and contaminants 300 into and through the filtering element 50 the filtered and decontaminated exhaust is then dispersed through a diffuser 55 disposed on the outside of hood 30 as best shown in fig5 motor 65 may include a switch 23 which adjusts the rotational speed of fan 70 to control the negative airflow through the filtering element 50 filter unit 12 also includes a sleeve 22 which connects to the ventilation housing 32 of hood 30 and extends downwardly therefrom see fig2 and 6 preferably sleeve 22 is dimensioned for telescopic engagement with post 21 such that the filter unit 12 may be selectively vertically positioned relative to base 14.