Sick Building Syndrome (SBS)
In a report by the World Health Organization is thought that up to 30% of new and renovated buildings with indoor air quality problems have to fight the world.

Building Related Illness (BRI)
Legionnaires 'disease and hypersensitivity pneumonitis are examples of BRI that can have very serious, even life-threatening consequences.
Multiple Chemical Sensitivity (MCS Multiple Chemical Sensitivity)
The MCS is not currently recognized by the major medical organizations, further investigations are necessary.