Grease Baffle Filters: Stainless Steel Baffle Filters

Grease filters are designed to remove grease and particulates from exhaust air streams. The most common grease removal filters currently in use are the baffle-type. Permatron’s metal grease baffle filters are available in three models. Our metal grease filters are made of galvanized steel, aluminum or stainless steel.

How Do Metal Grease Filters Capture Grease?

Our baffle grease filters are 2″ thick and contain two layers of roll formed baffles which are equally spaced to maximize grease removal. The spacing built into the filter creates an optimized air flow which helps the filters capture grease inside the filter. Grease then drains down the baffles and into a collecting trough. Permatron metal grease filters are designed to prevent flames from passing through the filter baffles. They are constructed from different materials to withstand different temperature levels. Read additional information on Grease Filters as published in the 2014 NAFA Guide

Constructed from different materials to withstand different temperature levels, Permatron metal baffle filters are available in:

  • Model GFG constructed of galvanized steel for a maximum temperature 450 degrees F; Classified by UL (grease) NFPA std. 96.
  • Model GFA constructed of aluminum for a maximum temperature 250 degrees F.
  • Model GFS constructed of 304 stainless steel for a maximum temperature of 900 degrees F; also available in 430 stainless steel.


  • Pure n Natural Systems has been working with Permatron for just about 2 years now. Simply stated, Permatron is an amazing company to work with.  The staff is knowledgeable, forthcoming, and extremely helpful when inquiring about specific products or applications. Leslye Palmer has been our go-to girl from the beginning. She knows the filter business inside & out and effortlessly helps us get requested information when presenting the Permatron product to our customers. Whether it’s for standard or custom size filters, Leslye is always friendly, attentive and willing to help. Our customers never have issues or problems with their filter orders. As we move into the future, we will continue to add more Permatron product lines to our website and look forward to a long-lasting relationship with Leslye and the entire Permatron team. True story… 😊  

    Sincerely, Brenda Roy

    Brenda RoyPure n Natural Systems
  • I visited Sovereign House today in Brighton, England. Those PreVent filters we installed on their Trane chillers are good as gold 6 years on - unbelievable quality doing a grand job still...

    Lee DavidsonJSA Service, Director of Business & Operations
  • Representing one of the largest manufacturers of commercial ice machines in the world, my role is to find suppliers to partner with to provide us with high-quality, cost effective component parts needed in order to produce our products. Permatron has proven to be a strong supplier, from first article samples for engineering and quality approval, to JIT production. Versatile, responsive and reliable is how I would describe Permatron's products.

    Scott DewarIce-O-Matic, Supply Chain Analyst III
  • You really put the “Service” in Customer Service. So many people would have just said no. I appreciate your taking that extra step by referring me to Reilly Foam. Permatron customers are lucky to have you in their corner. Thanks for all the help.

    Judy HandfieldTotal Refrigeration Gaskets
  • We manufacture remote refrigeration units, self-contained fridges you find in supermarkets to preserve food and beverages.  We have a great relationship with Permatron.  They provide great lead time, and orders always have a very fast delivery. Permatron is there for us, professional and reliable, delivering the air filters ordered when they are needed.

    Paul BertrandJSI Store Fixtures, Material Manager & Production Coordinator
  • You really put the “Service” in Customer Service.  So many people would have just said no. I appreciate your taking that extra step by referring me to Reilly Foam. Permatron customers are lucky to have you in their corner. Thanks for all the help.

    Judy HandfieldTotal Refrigeration Gaskets
  • The distributor you got me in contact with sent me the three PreVent Model R filters I was looking for. They are working great. Thank You.

    Robert M. CoutureSeaman Paper Company of Massachusetts, 3rd Class Steam Engineer
  • Everything was correct & professionally served, finely crafted with accurate dimensions of quality material. I will purchase further metal mesh filters from your firm in the future as demand calls for.

    Steven Sutherland HVAC Contractor, South Carolina
  • We had to change a combined condensing / free cooling coil because it was so badly damaged from debris and washing. 10k€ (approx. $12,000 USD)  for the coil and works and 6k€ (approx. $7000 USD) for the crane hire. The second chiller on the site is perfect as the screen was fitted back some time ago.

  • The filters we purchased are a great addition to our plant operations.  I am looking at other applications for their use…  

    Ben StevensValero Renewable Fuels, Maintenance Manager

Permatron metal grease baffles are designed to collect and drain grease into a trough, and prevent flame pass through.