WashBox24: Pricing Dry Cleaning, Laundry Bag, Laundry ...- 5 สัญลักษณ์ซักรีด pencucian ,1 out of 5 Thai suffers from Allergic disease, in which dust mite is considered among the primary causes. 1 gram of dust can contain up to 500 dust mites. 1 out of 10 of the weight of pillow older than 6 year- old is dust mites and their excrement.