Simplus Air Purifier - Kinda works but definitely doubting it's longevity

So had to get an air purifier because my weak aaa lungs and allergies can't handle having 2 cars in one room. Was browsing for something that could cover the following requirements: 1. Big range 2. Not too expensive This one meets those, and it does work. But I'm doubting just how long this thing will last after getting greeted out of the box that they'll replace it when broken, no repairs and whatnot. Sounds good and re-assuring, but also makes you wonder.