As many as 34 percent of the people who spend most of their time indoors in offices and at homes have various types of respiratory diseases because of the indoor air pollution. According to a survey conducted by Artemis hospital 82 per cent of the offices in the national capital have unhealthy air quality. The study said women and children were the most vulnerable. Bad indoor air quality can cause Chronic Obstructive Pulmonary Disease (COPD) among women and aggravate Asthma symptoms among children. ‘Unhealthy indoor air is also found to increase chances of developing Pneumonia in children’ the study said.