








🌬️ Breathe smarter, live fresher — don’t let stale air hold you back!
The 45i Replacement Filter by isinlive is a premium, compatible 3-in-1 filtration system designed for Alen BreatheSmart 45i and Flex air purifiers. Featuring a fine nylon pre-filter, HEPA filter, and activated carbon layer, it captures 99.97% of particles as small as 0.3 microns and neutralizes odors from pets, cooking, and smoke. Engineered with energy-efficient technology and supplied as a cost-effective 6-filter pack, it ensures long-lasting, high-performance air purification with easy installation and reset.





| Brand Name | isinlive |
| Model Info | Flex/45i Pure Replacement Filter |
| Item Weight | 3.69 pounds |
| Product Dimensions | 14.5 x 10.98 x 2 inches |
| Item model number | Flex/45i Pure Replacement Filter |
| Part Number | LYH0008-AHJ-2 |
| Color | 45I-2 |
| Compatible Device | Air Purifier |
| Included Components | 2 Hepa Filters, 4 Activated Carbon Filters |
| Batteries Included? | No |
| Batteries Required? | No |
D**K
Works great
His filters were great for a lot less than the brand name. Good quality.
S**.
Great value
The price, quality, and delivery time were all excellent!
S**A
Quality and Contents
Seems to work well... The carbon filter is on the side facing the back of the unit. On the front side, there is the normal thin black fabric material that acts as a lint, hair, and dust first stage filter. It came with two (2) extra first stage filters. Greatly appreciated. I did not notice any reduction in air flow due to the carbon filter. The fit was perfect, no binding or loose fitting. Worth the price I believe. Good luck.
R**
Super
They are a perfect fit quality excellent well worth the money
A**E
Perfect fit
Perfect fit
W**G
Complete set of filters
I was all ready to give this product a bad review. The last set of filters I bought (different vendor) advertised a charcoal filter in addition to the HEPA filter and pre-filter, but came without the charcoal filter. Subsequent research appeared to reveal that the charcoal filter was no longer provided by Alen, so the aftermarket brands followed suit, but still used the old photos showing the charcoal filter.I was very surprised when this set of filters arrived…with a charcoal filter! There’s some debate on whether or not the small amount of charcoal actually does anything to remove odors (better to be measured in pounds rather than ounces) but I don’t care. I’m just happy to find a product that provides what is advertised!
M**E
Works fine
These filters seem to work as well as the Alen filters, at a fraction of the cost.I try to buy U.S., and I try to buy local. But these filters are simply a bargain.On the bright (patriotic) side, the Alen unit was highly rated when we purchased it, and it lives up to expectations. We live on the edge of 300 acres of forrest and farm land, with pollen and dust galore. The filtration unit, with either Alen filters or these filters, improves the quality of our air in our home significantly.
W**S
Does not return filter status to normal.
The unit gives a “red” filter signal when these filters are used, I assume because of restricted air flow. Price was attractive though.
Trustpilot
2 months ago
2 months ago