| Specification | Blueair Blue 211+ | Alen T500 |
|---|---|---|
| Cadr (clean Air Delivery Rate) | ||
| Pollen (cfm) | 350 | 159 |
| Dust (cfm) | 350 | 159 |
| Smoke (cfm) | 350 | 159 |
| Physical | ||
| Height (inch) | 3.94 | 22 |
| Width (inch) | 13 | 6 |
| Weight (lbs) | 13 | 9 |
| Lenth (inch) | 13 | 9 |
| General | ||
| Number Of Cleaning Stages | ||
| Number Of Air Filters | 3 | 2 |
| Filtered Or Filterless | Filtered | Filtered |
| Noise Level | 31 | 42 |
| Features | ||
| Others | Air Purifier for Home Large Room up to 2,592sqft in 60 min | Quiet Air Flow for Large Rooms, 500 SqFt |
| Remove | Removes over 99% of airborne particles like smoke, dust, bacteria and pet dander, while the carbon filter traps light household odors from smoking, pets and cooking | Allergens, Dust, Mold, Pet Odors, Bacteria |
| Timer | ||
| Hepa Filter | ||
| Portable |