Alen Air Filter B4-Pure Replacement H13 True HEPA Filter for BreatheSmart 45i & Flex Air Purifier - Captures Allergens, Dust, & Mold (1 Filter)

Been using multiple Alen machines for a couple of years. This time I ordered and received the B4-Pure filter. I was a little thrown when not seeing a removable pre-filter. This updated version has a permanent plastic-like pre-filter attached. Per Alen, this Pre-filter is easily cleaned using the vacuum (same as the removable ones). Just started using… I’ll try to update in a couple of weeks.

I purchased the filter with the machine, the air purifier and I knew right off the bat. The quality of this filter was heavier than other filters I’ve used and add an air purifying machines. I was shocked at how the quality of the air in my apartment is with this air purifier. This filter is incredible at cleaning air. It gets everything out dust smoke smells from cooking and I was shocked at how long this filter lasted. It lasted me eight months and it kept the air quality for up to eight months at a very high quality. This is the only air filter I will use from now on it is pricey, compared to others, but I realize you get what you pay for. I highly recommend spend the money get the best you won’t regret. David NY

I recently replaced my old air filter with the alen replacement filter, and the difference it has made in the air quality of my home is truly remarkable. As someone who is conscious of the impact of air quality on health and well-being, I can confidently say that this product has exceeded my expectations in every aspect, it really does help with mold spores! I have first hand experience with unknowingly living with mold and this air purifier saved us!The alen replacement filter was a perfect fit for my air purification system, and the clear instructions provided made the replacement process straightforward and hassle-free. Within minutes, I had a fresh filter in place and was ready to experience the benefits.From the moment the new filter was in place, I noticed a significant improvement in the air quality throughout my home. The filter's advanced design effectively captures dust, pollen, pet dander, and other airborne particles, resulting in cleaner, fresher air. This has been particularly beneficial for my family, as we have noticed a reduction in allergy symptoms and an overall improvement in respiratory comfort.Another standout feature of the alen replacement filter is its longevity. Despite its high level of filtration, the filter has demonstrated impressive durability and has maintained its effectiveness over time, my first filter lasted over a year! This has not only saved me money on frequent replacements but has also provided peace of mind knowing that my air purification system is consistently delivering optimal performance.Furthermore, the filter's construction is of high quality, and its robust design ensures a secure fit and reliable operation. This attention to detail has contributed to my confidence in the product's ability to deliver consistent and reliable air filtration.In conclusion, I highly recommend the alen air filter replacement to anyone seeking to improve the air quality in their home. Its exceptional performance, ease of installation, and long-lasting effectiveness make it a top choice for those who prioritize clean and healthy indoor air. By investing in this replacement filter, you can breathe easy knowing that you are creating a healthier environment for yourself and your loved ones.

works! life saver, collects so much dust, which it'll be cheaper but what can you do, super easy to use, great quality

We have two big cats. One of them a pure bred Siamese, which is supposed to be hypoallergenic. And we have a Morkie who never sheds even one hair. But the Siamese is a shredder. So we bought this for me because we all five of us sleep in the same room and same bed. It works great!Then we realized our Siamese was sneezing all day several times In a row, and smelling of litter... even in his ears. He's a flinger. Very enthusiastic about covering his poo. Litter dust was everywhere including up his nose and I could smelled it in his ears. Yikes! Our other cat didn't even bother to cover her business, so she wasn't being bothered at all. We put two and two together and I began to worry about his respiratory system. So guess where the air purifier is now. You guessed it. The litter boxes are in our laundry room, so that pricy purifier sits in that doorway and when we changed the filters we could easily tell this purifier and it's filter are doing their job very well. Sorry I don't have photos to show you the results. Maybe next time I change it, if I remember. Oh and after several tries, we did find a litter that is about 50 less dusty than the old one that said it was 99.9 % dust free. Haha. Joke is on us. They all day that and we just kept buying it because everybody else's does with no problem. My cat has sneezed one time since the change and the purifier is on duty. We are all much happier about that!