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Alen A350 Air Purifier Review

Overall Rating:
4.6 out of 5 stars
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Alen A350

The Alen A350 Air purifier is considered to be one of the most efficient on the market. It has been designed to clean the air in a room of up to 800 square feet. However, for those that suffer badly with allergy symptoms, one unit per 400 square feet will ensure the air is cleaned up to 4 times per hour. The filtration system used with this model is an “all in one”, making it very easy to maintain.

Review Details

For consumers looking for an air purifier that will clean the air sufficiently to keep allergy symptoms at bay, you won’t go far wrong with the Alen A350. It can be wall mounted to save space, and has been designed with both affordability and efficiency in mind.

The HEPA filtration system has been cleverly manufactured as a 3 in 1 unit. It combines a pre-filter, HEPA filter and light carbon filter. When it needs replacing, it’s a snap. Just remove the front cover and replace the filter with a new one. This job takes a mere few seconds and will only need to be done once every 6 months.

For additional ease of use, the A350 is equipped with a 12 hour timer, soft touch controls and filter change indicator.

What We Liked

  • Efficient
    The A350 has a 3 in 1 filtration system. The pre-filter removes large particles such as hair and dust, helping to extend the life of the HEPA filter. The HEPA filter removes up to 98% of pollen, dander, dust mites and mold particles as small as 0.3 microns in size. Finally, the carbon filter will help reduce odors such as cooking smells and pet odors.
  • Ease of Use
    Fitted with a 12 hour timer, digital display and filter change indicator, this air purifier couldn’t be easier to use.
  • Totally Safe
    This model has an in-built ionizer which is designed to help produce healthy negative ions, thereby eliminating the growth of harmful bacteria. It will not produce any harmful ozone.
  • Lifetime Guarantee
    Alen are is so confident with the A350, they offer a lifetime guarantee, which is supported by the best life-time warranty program.

What We Didn't Like

  • Pricey
    Compared to some other models on the market, the A350 is more expensive. However, given that it comes with a life-time guarantee (which no other manufacturer can boast), the initial cost will be outweighed in the long-run.
  • Fan Noise
    There are 4 speeds with this purifier, and some complain it’s loud on the top 2. That said it does depend on where the unit is and how sensitive you are to noise.


The Alen A350 purifier is more costly than other models on the market. However, considering the 3 in 1 filtration system and life-time guarantee, there are fewer associated costs once the initial purchase has been made. It has a stylish, almost ‘control panel’ type look and saves space if wall mounted. For the money and maintenance costs, this unit is actually very good value. It’s also highly revered for its efficiency at reducing harmful allergy promoting symptoms.

Review by AirReflect ©
Last modified: April 21, 2013 (Prices are updated daily)
Alen A350
Dimensions (L x W x H):
8.2 x 18.5 x 17.5 inches
16 lbs
Power Supply:
120 Volts
80 Watt
Suitable for treating:
Asthma, Allergies, Pet Dander, Odor
Noise level:
36-65 dB
800 square feet
203 Cubic Feet per Minute
Adjustable Fan Speed:
Yes, 4 speeds
Ozone Emission:
Digital Controls:
Filter Change Alert:
Energy Star Certified:
AHAM Certified:
Lifetime years

Alen A350 Prices

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