S-Series sterilizers feature an interior manufactured with a fully welded 304L-2B stainless steel liner. All interior corners are formed with a 3/4 inches radius to provide ease of wipe downs. The S-Series sterilizers are rated for depyrogenation temperatures, as a standard, of up to 260C and provide a guaranteed full class 100 condition throughout the entire process cycle. HEPA filters, rated at a minimum 99.97% efficient at 0.3 microns, are installed in the air intake, exhaust and recirculation wall. The intake HEPA filter prevents contaminates from entering the sterilizer during operation and is protected with an upstream prefilter. The exhaust HEPA filter ensures that contamination will not be drawn into the sterilizer at the cycle’s end and side wall filters provide filtration immediately prior to the process air entering the sterilization chamber. Filter housing design provides ease of access to the filters for validation and maintenance purposes