Alen A350 Air Purifier Review and Test

Retail Price: $399


OVERVIEW: I like my Alen A350 Air Purifier, I just don't like the cost of filters and the Warranty policy. It's a four stage machine with HEPA, carbon, Negative Ionization with a washable Pre-filter. It's solidly made and should be for the price of $399.00 plus shipping. Since it does not include any virus or germ protection (like UV) it will work for Allergens (dust, pollen) but not on mold or immune system threats. However Alen has created another model alen a375uv which is identical to this that adds UV and Tio2 for several hundred dollars more.

On their site they claim that the Alen a350 can cover 800 sq. feet but then say that it functions optimally at 400 square feet. This shows the kind of flexibility manufacturers have for square footage, or maybe I should say for marketing. Because of 10 technologies and the hundreds of things in the air from particles to gases it's all open to debate.

Alen's Lifetime Warranty Program

While the Alen model claims a "Lifetime Warranty" it requires you to participate in an "auto-ship" filter program which will cost you $60 every 6 months ($120/Year). My take on this is that they are gambling that they'll make enough profit from you in the first 3 years (about $400) that they can more than cover any problem later on with replacing the unit. Of course most people won't even bother, and it's win-win for them, lose-lose for you either way. Clever.

To see Alen Air's other model, the Alen A375UV Air Purifier, follow the link below.

Alen a350 air purifier vs. Alen A375UV Model

Alen A350 Air Purifier Video Review

Pros and Cons


1 - Nice combination of HEPA for allergies

2 - Carbon for smoke and odor

3 - Very easy controls


1 - It costs an additional $99 for added gas or smoke filtration

2 - High Priced at $399

3 - Extra Replacement Hepas are $60.00 (Expensive)

4 - lifetime Warranty requires additional filter purchases

Specs and Tech

Alen Air A350 Air Purifier

MSRP (Price): $399.00

Purification Technologies: 4

Square Feet: 400-800 .

Replacement HEPA Cost: $60

Yearly Costs: $60-120

Warranty - Lifetime warranty comes only with regular HEPA replacements (This means you have to buy $60 HEPA filters from them every six months)

Number of Speeds - 4

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Alen A350 Air Purifier Particle Test

"Richardson" Air Purifier Rating

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

2. Particle Removal (Pollen, Dust) 9

3. Immunity (Germs, Virus, etc.) 1

4. Gas (Odor, Chemicals, Smoke) 2

5. Longevity/Quality 4

6. Noise Levels 2 (it's a bit loud on high)

7. Ease of Use 7

8. Warranty 3

9. Customer Service/Reputation (based on Amazon reviews) 3

10. Price Value 2

Score: 36 = Fair


I like my A350 Air Purifier although it's a bit overpriced at $399 (and with HEPA replacements at $60 every 6 months). My personal suggestion is to check out the other Reviews via the link below.....

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Alen A350 Air Purifier compared to others

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