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S90 Twin Engine
The materials selected for the passenger compartment and the air cleaning system ensure that the air quality in the passenger compartment is high.
The Clean Zone function checks and indicates whether or not all conditions have been met for good air quality in the passenger compartment.
Clean Zone Interior Package*
Clean Zone Interior Package (CZIP) comprises a series of modifications that keep the passenger compartment even clearer from allergy and asthma-inducing substances.
Interior Air Quality System*
Interior Air Quality System (IAQS) is a fully automatic air quality system that separates gases and particles to reduce the levels of odours and contaminants in the passenger compartment.
Activating and deactivating the air quality sensor*
The air quality sensor is part of the fully automatic air quality system Interior Air Quality System (IAQS).
Passenger compartment filter
All air entering the car's passenger compartment is cleaned with a filter.