I was concerned about allergens like dust and fine particles in the air in my house. I wanted to have clean and healthy air so I found that the Conair Medium Room Air Purifier was a good choice for my room. The assembly took a few minutes, and no tools were required. Also, it's lightweight and can be easily carried. I like that it's neither too big nor too small, its size is perfect for my room. I use it every night, and it's working great. It doesn't produce a lot of noise; therefore, sleep is not disturbed. I highly recommend it!