Save Money! Non-woven filter envelopes are capable of generating a lot of profit for the restaurant business by increasing the time between fryer oil changes. Filtering oil is much less expensive than changing it. Effective and Improves Customer Satisfaction! These filter envelopes are a highly effective means for increasing the life of fryer oil. Non-woven filter envelopes not only filter the frying oil, but also remove smoking smell and the unpleasant taste from older, unfiltered oil. They take out old food particles left in the cooking oil. Improved taste will have customers returning again and again! Work Safely! Safety is key is any restaurant or kitchen setting. Help ensure your staff's safety by regularly filtering your cooking oil. These filters make use of the machine's automatic filtration system.