Alen Air Purifiers : Review and Test Results

Retail Price: $399


OVERVIEW: In our review of Alen Air Purifiers I begin with their most popular, and reasonably priced model, the Alen A350. This is a 4-stage HEPA, carbon, Negative Ions and washable Pre-filter air purifier put to our tests. Nothing unusual here, and nothing special, but solidly made unit priced a bit high (for what you can get) at $399.00 plus shipping. Since it does not have UV, Tio2 or other anti-virus, or germicidal types of filters, it will work for Pollen and Dust but not for mold or immune system protection.

On their site it claims 800 sq. feet but then explains that it functions optimally at 400 square feet. Because of this one area we'll be examining is it's flow rate.

Lifetime Warranty Program

While it has a "Lifetime Warranty" you must participate in their "auto-ship" filter program ($60 every 6 months). My assessment of this is that they are betting that they will make enough money from you in the first 4-5 years (about $600) that they can sustain any problem later on with replacing the unit. Of course most people won't even bother.

ON SALE With Free Shipping Below For $197

To see Alen Air purifiers other models, including the Alen A375UV Air Purifier, follow the link below.

Alen A375UV Review

Watch The Alen A350 Video Test Review Below

Pros and Cons


1 - Includes HEPA for allergies

2 - Easy to use


1 - You have to pay another $89 - $99, for added gas or smoke filtration

2 - Expensive at $399

3 - Replacement Hepa is $60 (Expensive)

4 - Only 3 technologies

Specifications and Technologies

Alen Air A350 Retail Price: $399

Purification Technologies:

Square Footage: 156-300 SQ. Ft.

Replacement Filter Costs: $59

Yearly Costs: $60-90

Warranty - Lifetime warranty with regular filter replacements (WARNING: This means you have to be buying filters from them on a continuous basis)

Number of Speeds -

Filters -

Alen Air Purifier Particle Test

"Richardson" Air Purifier Rating

1. Technologies Included: (out of of 10 technologies) 3

2. Particle Removal (Allergens, Dust) 9

3. Immune System Threats (Germs, Virus, etc.) 1

4. Gas Removal (Odor, Chemicals, Smoke) 2

5. Longevity/Quality 4

6. Noise Levels 2

7. Ease of Use 7

8. Warranty 3

9. Customer Service/Reputation (reviews) 3

10. Price Value 2

Score: 36 = Fair

Other Alen Air Purifier Models

The other Alen Air Purifier models are listed below:

Allen T-300 - $299


Weighs 15 pds

Rated for 156 sq ft optimal (to 300)

4 speeds and timer

Warranty: lifetime but ONLY with purchase of filters every 4 month plus shipping and handling of $15.00


UV - $54.00

Hepa - $49.00

Carbon - $89.00 extra


Alen A375UV Multi-Gas Air Purifier - $599.00

2 UV lights ($59), TI02, Washable foam Pre-filter, Neg Ions, dust & odour sensor severity strip

Still 400 square feet

Size: 18.5" x 8.23" x 17.48", Weight: 19 pds


Alen T100

3 speeds, only 150 square feet, 10x6.2x14.5

ON SALE With Free Shipping Below For $197


When it comes to Alen Air Purifiers their Alen A350 is a bit overpriced at $399 in my opinion, including HEPA replacements at $60 every 6-9 months. Plus their warranty is tied to replacing that filter a lot. My person suggestion is to check out the Alive Air Purifier Review as it has 9 technologies, costs $100 less and the filters are half as much.

You might find one on sale here in which case this would become a reasonable choice.

Watch Comparisons Of All Air Purifiers Here

Alen Air Purifiers Comparison Chart

Q: Which Air Purifier is Best for Me?

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