Using these pillow covers is a breeze. Just unzip the cover and insert the pillow inside. You can place them on your indoor sofa, chair, or even outside on a patio furniture. When it comes to maintenance, spot - clean the covers with a mild detergent and a soft cloth. Let them air dry. Avoid using harsh chemicals as they might damage the fabric. Keep them away from direct sunlight for long periods to prevent fading. Since they're mold and mildew resistant, they can handle a bit of moisture, but it's still best to keep them dry. These pillows are not for commercial use, so use them in your home for the best experience.