Intel have specified and trademarked Ultrabook as a brand for a class of high-end subnotebook computers featuring reduced bulk without compromising battery life. Ultrabooks use low-power Intel Core processors, solid-state drives, and a unibody chassis to help meet these criteria.
It is an odorless, colorless, syrupy, sweet-tasting liquid. Ethylene glycol is moderately toxic, with children having been particularly at risk because of its sweet taste, until it became common to add bitter flavoring to consumer antifreezes containing it.
The inhalation pharmacokinetics of ethylene have been investigated in human volunteers at atmospheric concentrations of up to 50 ppm (157.5 mg/cu m) by gas uptake in a closed spirometer system. The uptake, exhalation and metabolism of ethylene can be described by first-order kinetics. Uptake of ethylene into the body is low.