Alen Air Purifiers are known for their best-in-class performance and top end technology. Alen was the first in the industry to introduce lifetime warranties for all their products, a sign of the strong confidence in their own products. Alen’s bestselling product is the Alen Breathesmart, which is widely considered one of the best air purifiers in the market.
Compared to those of other brands, Alen air purifiers typically have a larger coverage area and is meant for larger homes or office uses. Most Alen air purifiers come with three layers of filters: a washable pre-filter, which takes care of the large particles; an electrostatic HEPA middle filter which removes the most common air pollutants including dander, pollen and dust, and an activated carbon filter which removes chemicals and odors effectively.
Here are the top 5 Alen air purifiers with links to their associated air purifier reviews:
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| Name | Alen BreatheSmart | Alen A375 Air Purifier | Alen A350 Air Purifier | Alen T100 | Alen T300 |
| Full Name | Alen BreatheSmart | Alen A375 Air Purifier | Alen A350 Air Purifier | Alen T100 – HEPA Style Desktop Air Purifier | Alen T300 Tower Air Purifier |
| Coverage | 1100 square feet | 650 square feet | 750 square feet | 125 square feet | 500 square feet |
| Filter Type | HEPA | HEPA | HEPA | HEPA | HEPA |
| Dimensions | |||||
| Length (Inches) | 10″ | 19″ | 18.5″ | 10″ | 11″ |
| Width (Inches) | 17.8″ | 10″ | 8.2″ | 6″ | 9″ |
| Height (Inches) | 26.8″ | 20″ | 17.5″ | 15″ | 28″ |
| Weight (Pounds) | 21 pounds | 19 pounds | 16 pounds | 10 pounds | 12 pounds |
| ACH Rating | 5x if used in 430 square feet space, 2x if used in 1100 square feet space | 5x | 5x | 2x | 5x |
| CADR Rating | |||||
| Dust | 256 | N/A | N/A | N/A | N/A |
| Smoke | 276 | N/A | N/A | N/A | N/A |
| Pollen | 301 | N/A | N/A | N/A | N/A |
| Removes Smoke | Yes | Yes | Yes | Yes | Yes |
| Removes Pollen | Yes | Yes | Yes | Yes | Yes |
| Removes Dust | Yes | Yes | Yes | Yes | Yes |
| Removes Pet Dander | Yes | Yes | Yes | Yes | Yes |
| Removes Mold Spores | Yes | Yes | Yes | No | Yes |
| Removes Germs | Yes | Yes | Yes | No | Yes |
| Removes Odors | Yes | Yes | Yes | No | Yes |
| Pre-Filter | Charcoal | Charcoal | Charcoal | Charcoal | Charcoal |
| Energy Usage | 85 Watts | 85 Watts | 85 Watts | 85 Watts | 85 Watts |
| Warranty | Lifetime | Lifetime | Lifetime | Lifetime | Lifetime |
| Shipping | Free Shipping | Free Shipping | Free Shipping | Free Shipping | Free Shipping |
| Others | 60-day No Questions Asked Return Guarantee | 60-day No Questions Asked Return Guarantee | 60-day No Questions Asked Return Guarantee | 60-day No Questions Asked Return Guarantee | 60-day No Questions Asked Return Guarantee |
| Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon |
Top Alen Air Purifier Reviews
Here are the best Alen Air Purifiers we have reviewed:
Alen Air Purifier Categories
The three main categories of Alen Air Purifiers are as follows:
Alen Breathesmart
- This is a category of its own, and is an industry leader, with 1,100 square feet coverage and impressive CADR ratings
- Backed with a 60-day no questions asked guarantee
- Relatively heavy, weighing 21 pounds
- Consistently good reviews
Alen A350 and A375 series
- Mid range products, but also impressively large coverage: 650-750 square feet, enough to cover most homes
- Lifetime warranty – however, note that this is contingent upon a recurring annual subscription to replacement filters
Alen T300 and T100 series
- Lower end products, covering 125-500 square feet, which is still significant
- Slim and lightweight, weighing only 10-12 pounds
- More mixed reviews
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