Using this cloth filter bag is easy. Just install it into your compatible Hako backpack vacuum cleaner as instructed in the vacuum's manual. When it comes to maintenance, it's a good idea to check the bag regularly for any signs of wear or blockage. If it gets dirty, you can gently clean it by hand. However, avoid using harsh chemicals as they may damage the bag. Also, make sure to let it dry completely before putting it back in the vacuum. As for storage, keep it in a dry and clean place. By following these simple steps, you can ensure the bag lasts a long time and your vacuum cleaner works at its best.