Designed For Operation Within Class 1000 Environments (US FED STD 209E). ● 400°C, 500°C Or 600°C Maximum Operating Temperatures. ● 28 To 1000 Liter Chamber Volumes. ● Fully Sealed Low Thermal Mass Insulation Avoids Shedding Fibres. ● Fully Enclosed Brush Less Fan Motor. ● 301 Controller, With Single Ramp To Set-point Facility. ● Smooth Easily Cleaned Gloss Epoxy Exterior. ● Polished Stainless Steel Sealed Interior. ● Perforated Stainless Steel Shelves. ● Particle Free Silicone Rubber Door Seal. ● Membrane Control Panel With Clear Bright LED Display. ● Double Skin Construction For Cool Safe Outer Case Temperature. ● Fully Adjustable Chamber Ventilation