Dust mites love high humidity. The easiest way to decrease the humidity in your house is with a dehumidifier. You can also decrease the humidity by opening windows on dry days. Always use fans and vents when cooking, showering, and other activities that create steam.  By reducing the humidity in your house, you can create an environment that's not ideal for dust mites, and you will slow down how quickly they reproduce. Install a hygrometer to keep an eye on the humidity, and keep the level below 50 percent. Dust mites also love high temperatures. The ideal temperature for them is between 75 and 80 F (24 and 27 C). In winter, set your thermostat to 70 F (21 C), and even cooler in the bedroom if that's comfortable. In summer, use fans, windows, and air conditioning when necessary to keep your house cooler. Disinfectants like Lysol are ideal for killing dust mites, and will make your home inhospitable to them. After your regular dusting, spray the disinfecting spray everywhere that dust tends to collect, including:  Corners Baseboards Floors Shelves Curtains Near furniture Certain essential oils, and eucalyptus specifically, are effective at killing dust mites. There are a few ways you can use eucalyptus around the house to make your home unfriendly for dust mites, including:  Add 20 drops of eucalyptus oil to your washing machine, especially when you're using a cold or warm water setting.  Pour about 30 drops of eucalyptus oil into a spray bottle and fill the bottle with water. Use the spray around the house, including on your bed, furniture, pillows, toys, carpets, and other areas where dust mites live.

TL;DR in Vietnamese:
Giảm độ ẩm trong nhà. Hạ nhiệt độ. Xịt sản phẩm khử trùng trong nhà. Dùng khuynh diệp.