--- product_id: 706082360 title: "45i Replacement Filter Compatible with BreatheSmart 45i and Flex Air Purifier, 3-in-1 H13 True HEPA+ High-Efficiency Activated Carbon Filter+ Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter" brand: "isinlive" price: "€ 110.36" currency: EUR in_stock: true category: "Isinlive" url: https://www.desertcart.pt/products/706082360-45i-replacement-filter-compatible-with-breathesmart-45i-and-flex-air store_origin: PT region: Portugal --- # low energy consumption tech 3-in-1 advanced filtration 99.97% particle capture 45i Replacement Filter Compatible with BreatheSmart 45i and Flex Air Purifier, 3-in-1 H13 True HEPA+ High-Efficiency Activated Carbon Filter+ Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter **Brand:** isinlive **Price:** € 110.36 **Availability:** ✅ In Stock ## Summary > 🌬️ Elevate your air game—because clean air is the new luxury ## Quick Answers - **What is this?** 45i Replacement Filter Compatible with BreatheSmart 45i and Flex Air Purifier, 3-in-1 H13 True HEPA+ High-Efficiency Activated Carbon Filter+ Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter by isinlive - **How much does it cost?** € 110.36 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/706082360-45i-replacement-filter-compatible-with-breathesmart-45i-and-flex-air) ## Best For - isinlive enthusiasts ## Why This Product - Trusted isinlive brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Value-Packed Set:** Includes 2 True HEPA + 4 Carbon filters—optimized for 6-8 months of fresh air - • **Energy-Smart Design:** Advanced low-density tech reduces energy use while maximizing filter life - • **Triple-Stage Purity:** Fine Nylon + H13 True HEPA + Activated Carbon for unmatched air clarity - • **Odor & VOC Neutralizer:** Activated carbon filter eliminates pet, cooking, and wildfire odors effortlessly - • **Ultra-Fine Particle Defense:** Captures 99.97% of particles down to 0.01 microns—breathe the difference ## Overview The 45i Replacement Filter by isinlive is a premium 3-in-1 filtration system compatible with Alen BreatheSmart 45i and Flex air purifiers. Featuring a Fine Nylon pre-filter, H13 True HEPA filter, and activated carbon layer, it captures 99.97% of airborne particles as small as 0.01 microns and neutralizes odors from pets, cooking, and wildfire smoke. Engineered with energy-efficient technology, this cost-effective pack includes 2 True HEPA and 4 carbon filters, designed to maintain optimal air quality for 6-8 months. ## Description 1 ## Features - 【COMPATIBLE MODELS】The premium 45i Pure replacement filter is specfically compatible with A-len BreatheSmart 45i and Flex Air Purifier. Compared to Part # B4-Pure. 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 Pure replacement filter for A-len BreatheSmart 45i air purifier features 3-stage filtration system: ①Fine Nylon Preliminary Filter ②H13 Grade True HEPA Filter ③Activated Carbon Filter. It's specifically customized for pet dander and cooking odor, lint, pollen, smokers, wildfire season, gases, etc. - 【HIGH PERFORMANCE】These FLEX true HEPA air filters for Alen BreatheSmart air purifier can attach 99.97% of airborne particles down to 0.01 microns such as pollen, pet dander, lint, dust, hair. And the activated carbon filter can attach most unpleasant odors such as pet odors, cooking, vocs, wildfire. - 【PREMIUM QUALITY】Our Flex air purifier replacement filter is adopt advanced lower energy consumption and lower density structure technology verified by the manufacturer, with higher efficiency and less pressure to ensure maximum performance. - 【COST-EFFECTIVE 】- Package includes 2 x True Hepa +4 X Actived Carbon Flex & 45i replacement filter. It is recommended to replace your 45i filter every 6-8 months for optimal performance (depending upon your usage and environment). Filter made of FSC-Certified paper ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CRRTK2BQ | | Brand Name | isinlive | | Compatible Devices | Air Purifier | | Customer Reviews | 4.6 4.6 out of 5 stars (172) | | Item Dimensions L x W x Thickness | 36.8L x 27.9W x 5.1Th centimetres | | Manufacturer | isinlive | | Manufacturer Part Number | LYH0008-AHJ-2 | | Material Type | Nylon | | Model Number | Flex/45i Pure Replacement Filter | | Number of Items | 2 | | Number of Packs | 6 | | Unit Count | 2.0 count | ## Product Details - **Brand:** isinlive - **Compatible devices:** Air Purifier - **Manufacturer:** isinlive - **Material:** Nylon - **Number of Packs:** 6 - **Number of items:** 2 - **Product dimensions:** 36.8L x 27.9W x 5.1Th centimetres - **Unit count:** 2.0 count ## Images ![45i Replacement Filter Compatible with BreatheSmart 45i and Flex Air Purifier, 3-in-1 H13 True HEPA+ High-Efficiency Activated Carbon Filter+ Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter - Image 1](https://m.media-amazon.com/images/I/51C2kRKv2sL.jpg) ![45i Replacement Filter Compatible with BreatheSmart 45i and Flex Air Purifier, 3-in-1 H13 True HEPA+ High-Efficiency Activated Carbon Filter+ Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter - Image 2](https://m.media-amazon.com/images/I/413GrfkNnWL.jpg) ![45i Replacement Filter Compatible with BreatheSmart 45i and Flex Air Purifier, 3-in-1 H13 True HEPA+ High-Efficiency Activated Carbon Filter+ Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter - Image 3](https://m.media-amazon.com/images/I/41l61qBrAYL.jpg) ![45i Replacement Filter Compatible with BreatheSmart 45i and Flex Air Purifier, 3-in-1 H13 True HEPA+ High-Efficiency Activated Carbon Filter+ Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter - Image 4](https://m.media-amazon.com/images/I/51IOQqQgAmL.jpg) ![45i Replacement Filter Compatible with BreatheSmart 45i and Flex Air Purifier, 3-in-1 H13 True HEPA+ High-Efficiency Activated Carbon Filter+ Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter - Image 5](https://m.media-amazon.com/images/I/51QAPOMJQwL.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Frequently Bought Together - 45i Replacement Filter Compatible with Alen BreatheSmart Flex and 45i Pure Air Purifier, 3-in-1 H13 True HEPA+ Activated Carbon Pre Filter, B4-Pure, 2 X True Hepa+4 X Carbon Filter - Alen Air Purifier BreatheSmart 45i HEPA with Pure Filter for Large Rooms up to 1600 Sq. Ft. - Perfect for Bedrooms - Captures Allergens, Dust, & Mold --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/706082360-45i-replacement-filter-compatible-with-breathesmart-45i-and-flex-air](https://www.desertcart.pt/products/706082360-45i-replacement-filter-compatible-with-breathesmart-45i-and-flex-air) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-12*