Using a vacuum equipped with a HEPA (high-efficiency particulate air) filter will ensure that you're sucking up as much dust as possible. Vacuum all the carpeting in your home, focusing especially on high-traffic areas. You can also vacuum other flooring. Vacuuming frequently really cuts down on how much dust is able to build up under furniture and in corners - you'll probably notice a difference right away.  Be sure to change your vacuum filter frequently. Make sure your vacuum is in good working order. A broken vacuum will just spit the dust back into the air, making the problem worse. Using a broom and dustpan to get rid of the dust on the floors you don't vacuum is another great way to reduce your household dust. Sweep frequently in areas that tend to have a lot of dust, like doorways, hallways and the kitchen floor. Toss out the dust in your garbage can to make sure it doesn't reenter your household. Going over your flooring with a wet mop is a great way to collect the dust you missed while sweeping. If you mop frequently, you'll be able to get the dust under control. Letting it go too long will make it a lot more difficult to clean up all the dust and dirt, and you may need to do some scrubbing. Not all dusting cloths are made alike. If dust is an issue in your house, it might be time to spring for a microfiber dusting cloth. This fabric is designed to trap dust and hold it. Using an old t-shirt or towel tends to move the dust around rather than actually getting rid of it. Same goes for feather dusters - your furniture will look cleaner, but the dust particles have simply moved into the air.  Use microfiber cloths to dust all surfaces where dust tends to accumulate, like the top of your mantel, desk, side tables, and so on. Wet cloths tend to collect dust better than dry cloths, so when you're dusting furniture that isn't wooden, try wetting the cloth first. Wash microfiber cloths immediately after dusting to get rid of everything the cloth collected. Don't use dryer sheets when you run them through the...

TL;DR in Vietnamese:
Hút bụi 2 lần mỗi tuần. Cách vài ngày quét nhà một lần. Thường xuyên lau sàn. Lau bụi bằng khăn vải sợi nhỏ (microfiber). Giặt bộ ga giường thường xuyên. Đập gối đệm và thảm mỗi tháng một lần. Lau sạch tường từ trên xuống dưới.