Background: Aspergillus fumigatus is type of fungus which is harmful and going to be harmful for human in day to day life. As we are moving to a great scientific era we are not able to find the cure of many of the diseases and aspergillosis is one of them. Aspergillosis is disease which is caused by fungus Aspergillus fumigatus which causes inflammation in lungs and respiratory tract causing respiratory disorder and sometimes it can be so harmful to that extent that it can cause fatality in humans. This fungus glows very well in wide temperature ranges which have humid and warm conditions. A. fumigatus is a thermophilic species, with growth occurring at temperatures as high as 55°C and survival maintained at temperatures up to 70°C.1 In the (Figure 1) below we can see that in which of the country Aspergillus grows the less to the most.