Oakley Air Systems is your resource for a variety of 99.97% and 99.99% efficient HEPA filters. Filters are available in various sizes and frame options include particle board, fire retardant particle board, galvanized steel and stainless steel. It may be necessary to locate a cross reference to an OEM part number you have in use and we can assist with this. Please contact us with any detail on the HEPA you are requiring. We will confirm the specifications to ensure the HEPA filter you receive is the correct fit for the equipment you have in place. We offer several options for filters relating to this category. Please contact us concerning any aspect of your HEPA filtration needs.