Using this sweatshirt is easy. Just put it on like you would with any regular sweatshirt. It's great for various industries like oil and gas, construction, and more. When it comes to maintenance, you can wash it at home. It's been tested to keep its protective features even after 100 washes. But make sure to follow the regular washing instructions. As for attention points, always check the sweatshirt for any damages before using it. If you notice any rips or tears, it's best not to use it as it may affect the protection. Also, keep in mind that the removable hood can be taken off when you don't need it, and you can use the small left - sleeve pocket to store small items like pens or tools.