A vibration isolation workstation for ultralow natural frequency applications from Kinetic Systems Inc. is suitable for analytical balances, cell injection, patch clamping, wafer probing, sensor calibration, and confocal, optical and atomic force microscopes. The MK26 uses Minus K negative-stiffness vibration isolators, which provide a low net vertical stiffness without affecting the static load supporting capability. The isolators also supply the workstation with higher internal structural frequencies and efficient vertical and horizontal isolation. Adjusted to a 0.5-Hz natural frequency, the workstation achieves 93% isolation efficiency at 2 Hz, 99% at 5 Hz and 99.7% at 10 Hz. It is available with a gross load capacity of up to 650 lb and is Class 100 cleanroom compatible, with Class 10 compatibility also available.