I was concerned about allergens like dust and fine particles in my home air. I wanted to have a clean and healthy air in my room. Levoit Air purifier was a good choice for our room. I liked that its neither too big nor too small. Its size is perfect for our room. 
The assembly took few minutes, No tools required. Also, its lightweight and can be easily carried. 
The feature that I liked most is 3 stage filteration system. This way, I am assured that it works effectively. I use it every night, and its working great. It doesn't produce high noise, therefore, sleep is not distrubed. 
The display indicator about change filter notification is helpful in alerting about filter status. Moreover, it doesn't produce ozone, hence safe for environment. We love using it everyday!