House dust mites (HDM) are organism which may be found in people’s houses around the world. House dust mites live optimally in the house with humidity above 70%. A Survey by Riau Provincial Health Office at SDN 001 Buluh Cina in 2014 found a high proportion of HDM which is 40,3%. This study aimed to find the proportion and risk factors of HDM, and also the relationship within the student�…