Astro Pak provided cleaning for advanced LIGO (the twin Laser Interferometer Gravitational-Wave Observatories). LIGO is the most precise measuring device ever built, detecting and measuring deflections in a laser beam as small as 1/10,000 the charge diameter of a proton. Cleanliness of the hardware was critical to avoid false signals that could result from volatilized matter floating in the vacuum of the laser beam pathways.
