Universal (Cut-to-Fit): Economical filter made of synthetic fibers that can be easily cut to your required dimensions. It traps grease and is suitable for most range hoods.
Metal, Grease (Washable): Permanent, washable filter (aluminum or stainless steel) that traps grease during cooking and protects the hood motor.
Activated Carbon: Essential filter for range hoods that operate with air recirculation (without a duct/chimney to the outside). Effectively traps odors.