Clean air workstations offer the best in class heating controller System to attain the highest efficiency of temperature and HEPA Filtration of air to achieve class 100 wok area with 0.3 micron Particle retention. High efficiency German motor blowers for Less than 57 dB noise level and heated glass stage. Wide range of sizes available, with customization. Clean air 3 – 3'x 2' working area Clean air 4 – 4'x 2' working area Clean air 6 – 6'x 2' working area Clean air 6D – 6'x 2' working area With dual provision for microscope