Noisy room next to my bedroom

I have a few machines in the room next to my bedroom, but the worst one is a fan that blows hair into my house, I was thinking of maybe building a box around since it runs 24/7 and the other machines only run when someone's using them during the day, or maybe on my window cover it with a blanket of sound proofing materials and use some sort of velcro, what would you guys recommend? I dont wanna break the bank and I want to make that fan as silent as possible