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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

Filter Stinks

Would Not Recommend

The machine oil smell sent into the room from the filter is nauseating. It has taken a week to lessen and I can still smell it after walking into the room after work. I read online that this can be "normal", but it's just gross.

February 28, 2025
Verified Purchaser
Was this Review Helpful ?

Best oem quality is from Alen

Removes cat fur allergens and purifies large room with pellet stove ash particles

January 27, 2025

From alencorp.com

Instructions should be more prominent

The machine works fine but support is lacking . I did not know I was supposed to clean the filter after vacuuming til I bought anew filter. I also did not know I was supposed to reset the filter light fora month or two after installing said new filter. Still the purifier works great and I am healthier for it.

July 23, 2024

From alencorp.com

Great Performance and Aesthetically Pleasing

We have used two of the Alen Breathesmart 45i purifiers for almost one year. They operate seamlessly on auto mode and are quiet until a higher fan speed is needed when the air becomes unhealthy. Then the fan noise is obviously louder, but still not obtrusive. We purchased these to filter construction dust from a six-month remodeling project in our home, as well as to clean the polluted air from Canadian wildfire smoke that somehow drifted to our region nearly 500 miles from the wildfires. Nearly...

March 16, 2024

From alencorp.com

Response from Marketing

Thank you for taking the time to share this review and provide feedback on how we can continue to improve!

MarketingMarch 18, 2024

Great filter

This filter really lasts and does a great job filtering particles from the air!

February 5, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingFebruary 5, 2024

fresh!

love these filters and purifiers! My home is fresh and can really feel and smell difference!

February 4, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingFebruary 5, 2024

Never had a problem in

Never had a problem in past orders or its air filtering. Anticipating quality filtering this time, and we will know in a month or so.

February 3, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingFebruary 5, 2024

Excellent Subscription Mgmt on Filters

Its super easy on auto renewal. YOU don't have to try and remember when to replace, it's all diarized & schedule for you. You can change the filter to be received if you need, and even cancel if you so wish. Super easy & flexible. Having seen what it takes out of the air I am glad we invested in Alen.

February 2, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingFebruary 3, 2024

Great Products!

We were using Dyson for air purifying. What a joke! Alen Air is the real deal. We purchased the 75i for our main floor and 45i for our bedroom we noticed a great difference in air quality. We have two dogs and having units with pre filters is a game changer. Have recommended their products to family and friends.

February 2, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingFebruary 3, 2024

Works great, gets every smell

Works great, gets every smell out of house! I run this machine 24/7 and very quiet.

February 2, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingFebruary 3, 2024

noticed the improvement when I

noticed the improvement when I changed the old filter and put the new one in

January 31, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingFebruary 1, 2024

Great quality product. Friendly customer

Great quality product. Friendly customer service. Take care of the claim responsibly and timely.

January 31, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 31, 2024

Alen Filter

Love how the two units keep the air in our home clean and fresh and love better how easy it is to change the filters at the start of each new year!

January 31, 2024

From alencorp.com

Response from Marketing

Thank you for this kind review!

MarketingJanuary 31, 2024