--- product_id: 508188180 title: "45i Replacement Filter for BreatheSmart Flex Alen 45i Air Purifier, H13 True Hepa Plus 3 Rre-Filters, Part # B4-Fresh (1-Set)" brand: "pulluty" price: "KD 20.94" currency: KWD in_stock: true reviews_count: 5 category: "Pulluty" url: https://www.desertcart.com.kw/products/508188180-45i-replacement-filter-for-breathesmart-flex-alen-45i-air-purifier store_origin: KW region: Kuwait --- # 3 extra pre-filters included 3-stage filtration system 99.97% particle capture 45i Replacement Filter for BreatheSmart Flex Alen 45i Air Purifier, H13 True Hepa Plus 3 Rre-Filters, Part # B4-Fresh (1-Set) **Brand:** pulluty **Price:** KD 20.94 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe smarter, live fresher—upgrade your air game now! ## Quick Answers - **What is this?** 45i Replacement Filter for BreatheSmart Flex Alen 45i Air Purifier, H13 True Hepa Plus 3 Rre-Filters, Part # B4-Fresh (1-Set) by pulluty - **How much does it cost?** KD 20.94 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/508188180-45i-replacement-filter-for-breathesmart-flex-alen-45i-air-purifier) ## Best For - pulluty enthusiasts ## Why This Product - Trusted pulluty brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Extended Filter Life:** Includes 3 extra pre-filters to prolong main filter performance and save costs. - • **Triple-Stage Defense:** Pre-Filter, H13 True HEPA & Activated Carbon combine for unmatched air purity. - • **Effortless Swap & Refresh:** Tool-free installation means cleaner air in seconds—no hassle, no downtime. - • **Trusted Quality & Support:** Backed by a 100% satisfaction guarantee and responsive customer care. - • **Precision Fit, Zero Air Bypass:** Engineered for perfect compatibility with BreatheSmart Flex 45i for maximum efficiency. ## Overview The 45i Replacement Filter by Pulluty is a premium, H13 True HEPA plus activated carbon 3-stage filtration system designed exclusively for the Allen BreatheSmart Flex 45i Air Purifier. It captures 99.97% of airborne particles down to 0.3 microns, including pet dander and odors, ensuring cleaner, healthier indoor air. The package includes one main filter and three extra pre-filters for extended use, with easy, tool-free installation and a recommended replacement cycle of 9-12 months for the HEPA filter and every 3 months for pre-filters. Highly rated for quality and value, it offers a cost-effective, reliable upgrade to maintain optimal air purification performance. ## Description 45i Replacement Filter for Breathesmart Flex Bh400 45i Air Purifier Review: This is a high quality 'same specification' replacement for my Allen large room air filter at a lower cost. It fits snuggly in place, which is good, as there is no chance air can get by without being drawn through the element. Having 2 extra (3 in all) pre-filters, should prove beneficial in extending life to main filter. There is no apparent change in air flow or sound. One note to mention, the red light did not go to green, as I had expected. Being almost a year after my initial purchase of the unit, I had forgotten to hold the filter button for 5 seconds. It immediately went from red to green. Review: Great replacement at a fraction of the price. Easy to install and the airflow is equivalent to the OE. filters the air as intended. ## Features - [Perfect Compatibility]: Our 45i filter replacementCompatible with Allen BreatheSmart Flex and 45i Air Purifier Only, Part # B4-Fresh (Old Part # FL40-Silver-Carbon). - [Valuable Package]: Contains (1) 3-Stage H13 True HEPA filtration system including Pre-Filter, H13 Grade True HEPA Filter and Activated Carbon Filter, PLUS (3) extra replaceable Pre-Filters. - [Superior Filtration Systems]: 3-in-1 True HEPA System High Efficiency Activated Carbon Filter, H13 Grade True HEPA Filter. Works 99.97% of airborne particles as small as 0.3 microns in size to attach, protecting your home from pet hair, pet dander and odors. - [Easy Installation]: Easy to replace without tools.Any questions about the installation can contact us.Replace True HEPA Filter Set every 9-12 months and Pre-filter every 3 months for optimal performance. - [After-sales service]: 100 satisfaction guarantee. Any questions, you can contact us, we will try out best to give you a satisfactory solution. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BPXJBPLB | | Best Sellers Rank | #75,062 in Kitchen ( See Top 100 in Kitchen ) #491 in Air Purifier Filters | | Brand Name | Pulluty | | Compatible Devices | Air Purifier | | Customer Reviews | 4.7 4.7 out of 5 stars (290) | | Included Components | 1 x 45i HEPA Replacement Filter and 3 x Activated Carbon Pre-filters | | Manufacturer | Pulluty | | Material Type | H13 True HEPA and Actived Carbon | | Model Number | 45i | | Number of Items | 1 | | Product Grade | new | | Unit Count | 1 Count | ## Product Details - **Brand:** Pulluty - **Compatible devices:** Air Purifier - **Manufacturer:** Pulluty - **Material:** H13 True HEPA and Actived Carbon - **Number of Items:** 1 ## Images ![45i Replacement Filter for BreatheSmart Flex Alen 45i Air Purifier, H13 True Hepa Plus 3 Rre-Filters, Part # B4-Fresh (1-Set) - Image 1](https://m.media-amazon.com/images/I/717JgL+c5YL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by D***Y on 23 May 2025* This is a high quality 'same specification' replacement for my Allen large room air filter at a lower cost. It fits snuggly in place, which is good, as there is no chance air can get by without being drawn through the element. Having 2 extra (3 in all) pre-filters, should prove beneficial in extending life to main filter. There is no apparent change in air flow or sound. One note to mention, the red light did not go to green, as I had expected. Being almost a year after my initial purchase of the unit, I had forgotten to hold the filter button for 5 seconds. It immediately went from red to green. ### ⭐⭐⭐⭐⭐ Review *by J***A on 7 June 2025* Great replacement at a fraction of the price. Easy to install and the airflow is equivalent to the OE. filters the air as intended. ### ⭐⭐⭐⭐⭐ Review *by M***G on 21 February 2026* Perfect ## Frequently Bought Together - 45i Replacement Filter for Breathesmart Flex Bh400 45i Air Purifier H13 Grade True Hepa Fresh Filter B4-Pure / Fl40 - Alen Air Purifier BreatheSmart 45i HEPA with Pure Filter for Large Rooms up to 1600 Sq. Ft. - Perfect for Bedrooms - Captures Allergens, Dust, & Mold - Alen Air Purifier BreatheSmart Flex HEPA with Fresh Filter + Carbon | 1400 Sq. Ft | Perfect for Bedrooms & Home Offices - Captures Allergens, Dust, & Mold + Household Odors & Smoke - White --- ## 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.com.kw/products/508188180-45i-replacement-filter-for-breathesmart-flex-alen-45i-air-purifier](https://www.desertcart.com.kw/products/508188180-45i-replacement-filter-for-breathesmart-flex-alen-45i-air-purifier) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-17*