Assistive products for controlling, adapting or measuring elements of physical environments

Products intended to control or modify specific elements of the physical environment or to measure the conditions and components of the natural or physical environment, e.g. air quality and noice.
27 03

Assistive products for environmental improvement

(32 product series)
E.g. air conditioners, humidifiers, air cleaners.

27 06

Measuring instruments

(39 product series)
E.g. tape measures, calipers.