Your curtains and drapes collect a lot of dust over time and also need to be cleaned. If your vacuum has a furniture attachment you can use it to remove the dust. Or you can take your drapes and curtains outside and shake out the dust. Then you can vacuum up what remains. If your curtains and drapes are small enough, you can probably put them in your washing machine. Just do it on a light and gentle setting. You can also employ the aid of a small steam cleaner. Like the ones they sell for shirts. This would kill off the dust mites and any bacteria that may be living on your curtains.
If you don’t want to deal with the hassle of cleaning things yourself, you can always hire a company to come clean your drapes and curtains. But of course, hiring services to do this for you can get expensive and adds up over time.
Regular vacuuming will help keep the dust levels down. And help you avoid breathing in allergens. There are various styles of curtains and drapes and the fabrics they are made of influence the best method for cleaning them. I won’t go into those here, since I wanted to focus on the vacuuming aspect.