Polyester microfiber curtains are usually easy to clean. There are sometimes other materials included with the polyester that can alter the proper cleaning method, but as a general rule you can treat stains with warm water and a mild detergent. Regular dust can be shaken out, or you can use a vacuum to suck it out of the fabric without harming the microfiber. Some curtains can be dropped right into a washing machine with your laundry on a warm temperature setting; avoid using fabric softener, which can damage the smaller fibers.
Polyester microfiber is tough to tear, and this is a benefit to curtains that could be pulled on or scratched by children and pets. While a stubborn pet may possibly shred the microfiber material, it tends to be tougher than other, thinner curtain materials. Because they are difficult to damage, polyester microfiber curtains can also last for an extended period of time, and this is an asset if you are looking for curtains for long-term use.
While sunlight shouldn't damage polyester microfiber curtains in the short term, the fabric is less resistant to heat than other fabrics. If the curtains are to be used as mainly a shield against the hot weather outside, you may want to consider other fabrics. However, microfiber resists water and should not be damaged by wind or moisture. They therefore can be useful as outdoor curtains for porches or gazebos.
Polyester is known for being an inexpensive fabric, and polyester curtains are therefore more cost-effective than some other fabrics, such as silk. The term "microfiber" means that each fiber of fabric must be less than one denier in thickness, which allows multiple strands to be packed into a small area. Microfiber polyester curtains are usually a little more expensive than standard polyester curtains, but they can still be a good investment for families on a budget who need new curtains.