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B4-Pure HEPA Air Purifier Filter

Ratings & Reviews for Alen B4-Pure HEPA Air Purifier Filter

4.8
1555
Review
 4.8 out of 5
1555 Reviews


80% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The air purifiers and filters are highly effective at improving air quality, reducing dust and allergens, and helping with respiratory issues. Customers report noticeable differences in air freshness and cleanliness after using the products. The filters are praised for their long-lasting performance and easy replacement, with the convenient subscription service and filter life indicator lights appreciated. The purifiers are described as quiet, attractive, and user-friendly. Overall, the products are reliable and effective, with customers being overwhelmingly satisfied and likely to recommend them.

Customer review summary generated by AI, including incentivized reviews.
1555 Customer Reviews

Happy with our air purifier,

Happy with our air purifier, haven’t installed new filter yet,

January 22, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 22, 2024

45i Filter

After 1st yr of use am pleased w/ filter's performance ...

January 21, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 21, 2024

I I have been using

I I have been using Allen filters for three years. It has decrease my asthma episodes, and allowed me to breathe easily at night without coughing.

January 21, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 21, 2024

The flex and i45 filters

The flex and i45 filters are the same. I wish they stated that on the website. If I had known I would have chosen the bundle to save some money. Instead I bought them individually due to having both the flex and i45 and paid more instead of getting the bundle price.

January 20, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 21, 2024

Clean Air

What other conclusion can you come to...this is my fifth unit that I have purchased (gifts to my daughter and son (2 each) for their homes and the latest for my home. I'm a believer and loyal customer for ever.

January 20, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 21, 2024

It works!

This filter is the only thing between us and our next door neighbors wood stove smoke. It cuts the smell and allows us to breathe much easier than without.

January 19, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 21, 2024

Works just fine

This is my first replacement filter. It was incredibly easy to remove the old one and install the new one. The first filter lasted about 10 months. I had been hoping it would last a year, but considering the true workout the air purifier got, I think it lasted admirably. Large remodeling job upgrading both bathroom and kitchen, then an air conditioning failure that included ceiling collapse. So, in view of all of that, yes, it performed incredibly well.

January 18, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 18, 2024

Tho the filter doesn’t look

Tho the filter doesn’t look exactly like the original one it is a good product

January 17, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 18, 2024

Works like a charm

All my neighbors are jealous of my air purifier. It cleans the air to my entire place in about 30 minutes. And the last filter worked over 9 months. Hoorah!

January 16, 2024

From alencorp.com

Response from Marketing

Thank you for sharing this kind review!

MarketingJanuary 17, 2024

45i

Love your 45i, does an excellent job. Hate that you do not offer recycling of your filters!

January 16, 2024

From alencorp.com

Response from Marketing

Thank you for sharing this kind review!

MarketingJanuary 17, 2024

bad filter

this is my 3rd filter and its giving off a toxic smell so i cant run my air purifier . its the worst

January 16, 2024

From alencorp.com

Response from Marketing

Please contact our office so we may speak further about your concerns.

MarketingJanuary 17, 2024

Haven’t installed as yet…old one

Haven’t installed as yet…old one still in good shape!

January 15, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 15, 2024

Filter replacement

Arrived on time and as expected. Snaps in easily and now I’m set for a while

January 13, 2024

From alencorp.com

Response from Marketing

Thank you for sharing this!

MarketingJanuary 14, 2024

Thanks Alen

With mild temperatures and rainy weather this winter in Ohio, my mold allergies are through the roof. Alen BreatheSmart Flex has been a God send! I originally bought it to avoid getting sick from grandkids, which really helped. With your sales, I am stocked up and ready for whatever comes my way!

January 12, 2024

From alencorp.com

Response from Marketing

Thank you for sharing this!

MarketingJanuary 14, 2024