No, the percentage of grease extraction efficiency is dependent on the design of the grease filter. Grease Filters are engineered to extract grease and results may vary according to the type of cooking appliances used in the kitchen. Choosing the right grease filter would be dependent on your preferences and unique cooking environment. Streivor has a variety of grease filters design for heavy, medium and light duty CKV environments. All are engineered for use in commercial kitchen type 1 hoods requiring a filter that is Listed to the UL 1046 Standard.