Air pollution effects on white-collar office workers who work in long-term relatively closed, air-conditioned office buildings, and regardless of the decoration, furniture pollution can not be completely distributed, self-generated pollution is personnel Nanjing Xuanwu formaldehyde testing company, will lead to indoor air quality is not Okay. According to the China Disease Prevention and Control Center expert investigation, the office space is relatively closed since the formaldehyde testing company, ventilation, air pollution, low oxygen content, easily lead to lower body and brain metabolic capacity. So now there are more and more white-collar workers and office staff complain polluted air, feel shortness of breath, lack of concentration, leading to reduced efficiency; some infirm dizziness, lightheadedness, fatigue and other symptoms of sub . In addition to these groups, but in an indoor environment, especially in poorly ventilated, crowded environment personnel Jiangning District of Nanjing formaldehyde testing company, a number of pathogenic microorganisms easily spread through the air, so susceptible to infection. Some common viruses, bacterial diseases such as influenza, measles, tuberculosis and other respiratory diseases are spread by air in the room. SARS virus outbreak fact also shows that indoor biological pollution should not be underestimated! To improve this situation, Nanjing Yuhuatai formaldehyde testing company, the most economically feasible way is to real-time monitoring to ensure good ventilation. Effects on the cardiovascular system healthy PM2.5 on human health effects of PM2.5. Currently, the influence of PM2.5 on the cardiovascular system more in-depth and comprehensive. PM2.5 after entering the body by inducing systemic inflammation and oxidative stress, leading to vasoconstriction, endothelial function is disrupted, a large number of reactive oxygen species released into the blood, thereby promoting coagulation, leading to thrombosis, blood pressure rise high and atherosclerotic plaque formation; on the other hand, PM2.5 also through the autonomic nervous reflex arc lungs, stimulate the sympathetic and parasympathetic nerve center, affecting the blood system and the vascular system, while also affect the heart The autonomic nervous system, leading to reduced heart rate variability, heart rate increases and arrhythmias.