Vayubodhan upkaran pvt. Ltd. Supplies high volume air samplers. Vayubodhan upkaran pvt. Ltd. Is the manufacturer of air pollution monitoring instruments. High volume air samplers is an extension and improved version of envirotech`s apm 400 series. High volume air samplers has been provided with castors for easy maneuverability. Large working space is available inside for carrying out necessary maintenance easily and quickly. The air sampler is quite ideal for those who do not require transporting / shifting it quite often. It is a vital tool for studies relating to impact of industrialization to the air analysis, and for work related diseases of the respiratory system to air pollution. These are very much essential for various environmental impact assessment studies.