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45i Replacement Filter for Alen BreatheSmart Flex Bh400 & 45i Air Purifier
✅ In stock
F
Grade
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Aug 16, 2026 4:41 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
LinZooM
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓【COMPATIBLE MODELS】45i replacement filter compatible with Alen BreatheSmart 45i and Flex Air Purifier. Compared to Part # B4-Pure/B4-Fresh/FL40. NOTE: This is not a OEM product. Any use of the brand name or model designation for this product is made solely for purposes of demonstrating compatibility.
✓【3-IN-1 FILTRATION】 Our 45i replacement filter compatible with Alen BreatheSmart 45i air purifier features 3-stage filtration system: ①Fine Nylon Preliminary Filter ②HEPA Filter ③Activated Carbon Filter. It's specifically customized for pet dander and cooking odor, lint, pollen, etc.
✓【HIGH PERFORMANCE】These FLEX HEPA air filters compatible with Alen BreatheSmart air purifier can attach 99.97% of airborne particles down to 0.3 microns such as pollen, pet dander, lint, dust, hair. And the activated carbon filter can attach most unpleasant odors
✓【COST-EFFECTIVE 】- Package includes 2 x Hepa Filters+6 x Actived Carbon Flex & 45i replacement filters. It is recommended to replace your 45i filter every 6-8 months for optimal performance (depending upon your usage and environment).
✓【MAINTENANCE TIP】After installing a new 45i replacement filter, press the FILTER button for 5 seconds to reset your air purifier. The indicator will switch from red to green. For any setup or usage issues, you can reach us for prompt support.
⚙️ Specifications
Brand
HKNECE
Material
Activated Carbon Filter, Pre Filter, True HEPA Filter
Product Dimensions
14.5"L x 11"W x 2"Th
Compatible Devices
Compatible with Alen Bh400 & 45i Air Purifier
Number of Items
8
Manufacturer
HKNECE
Number of Packs
2
Unit Count
8 Count
Compatible Hvac Systems
residential
Item Highlight
3-in-1 45i HEPA Fresh Filter+ Activated Carbon Pre Filter, B4-Pure/ Fl40, 2 Pack Hepa+4 Pack Carbon Filter
Item Dimensions L x W x Thickness
14.5"L x 11"W x 2"Th
