Indoor air quality (IAQ) is a growing concern for many people, especially those who suffer from allergies and other respiratory ailments. Poor IAQ has been linked to a wide range of health issues, including asthma, allergies, and even more serious conditions like cardiovascular disease and lung cancer. In Manhattan, where the population density is high and air pollution is a significant problem, allergists are increasingly focusing on the importance of maintaining good indoor air quality for their patients. H&H Environmental, a leading company in the field of environmental services, is at the forefront of this movement, offering cutting-edge indoor air quality testing to allergists in Manhattan. See forecast for Outdoor Air Quality in Manhattan.