--- product_id: 305031196 title: "HEPA Filter for Alen Air Purifier Filter Classic, BF35 & Breathe Smart Filter - Durabasics BF35 VOC Filter Fits Alen BreatheSmart Classic Air Purifier - Replacement for Allen Air Filters" brand: "durabasics" price: "S$148" currency: SGD in_stock: true reviews_count: 5 category: "Durabasics" url: https://www.desertcart.sg/products/305031196-hepa-filter-for-alen-air-purifier-filter-classic-bf35-breathe store_origin: SG region: Singapore --- # Energy-saving efficiency boost 3-stage activated carbon + HEPA filter HEPA 13 / MERV 17 filtration power HEPA Filter for Alen Air Purifier Filter Classic, BF35 & Breathe Smart Filter - Durabasics BF35 VOC Filter Fits Alen BreatheSmart Classic Air Purifier - Replacement for Allen Air Filters **Brand:** durabasics **Price:** S$148 **Availability:** βœ… In Stock ## Summary > 🌿 Breathe smarter, live fresher β€” upgrade your air game now! ## Quick Answers - **What is this?** HEPA Filter for Alen Air Purifier Filter Classic, BF35 & Breathe Smart Filter - Durabasics BF35 VOC Filter Fits Alen BreatheSmart Classic Air Purifier - Replacement for Allen Air Filters by durabasics - **How much does it cost?** S$148 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/305031196-hepa-filter-for-alen-air-purifier-filter-classic-bf35-breathe) ## Best For - durabasics enthusiasts ## Why This Product - Trusted durabasics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Long-Lasting Freshness:** Replace every 10-12 months to maintain optimal air quality - β€’ **HEPA 13 Certified Filtration:** Medical-grade air purification for cleaner, healthier breathing - β€’ **Energy Smart & Cost Effective:** Keeps your purifier efficient, lowering electricity bills - β€’ **Triple-Stage Odor & Particle Defense:** Activated carbon layers + HEPA trap dust, pet dander & odors - β€’ **Precision Fit for Alen BreatheSmart Classic:** Seamless compatibility ensures peak purifier performance ## Overview The Durabasics BF35 replacement filter is engineered exclusively for the Alen BreatheSmart Classic air purifier. Featuring a 3-stage filtration system with activated carbon pre- and post-filters plus a HEPA 13 (MERV 17) core, it effectively removes odors, dust, pet dander, and airborne particles. This exact-fit filter not only revitalizes your purifier’s efficiency but also helps reduce energy consumption, making it a cost-effective upgrade for maintaining clean, fresh indoor air. ## Description Replace Your Air Purifier Filter You love your Alen Classic purifier but it's been a while since you replaced its filter. Old, clogged filters can decrease the efficiency of your machine and raise your electric bill. Realistically, you should swap out the air filter every 10-12 months. Unfortunately, some replacements are quite pricey. Durabasics wanted to offer a top-quality option, but at a reasonable price. Our replacement Alen Filters give you 3 stages of air cleansing: 1. Pre-Filter: Made from activated carbon, the 1st layer completes initial filtration and combats unpleasant odors. 2. HEPA Filter: The middle layer is where the bulk of the filtration occurs. This includes pet fur, dander, and dust. 3. Carbon Filter: With little granules of carbon, the final layer has an increased surface area compared to the pre-filter. This helps combat any remaining odor and serves as a final filtration to clean your air. Durabasics Compatible Alen Filter Replacement BreatheSmart: The Durabasics filter fits the Alen BreatheSmart Classic only. This is filter model BF35.It is an exact match for this model and measures 15 13/32” x 14 ¼” x 2 13/32”. The Durabasics compatible Alen Air purifier filter replacement will: -Increase the efficiency of your air purifier -Reduce your electricity bill -Keep your air clean Review: Gute Preisleistung - Alles ok! Review: An efficient air filter for Alen Air Purifier BF35 Breathe Smart - Replacement filter for Alen Air Purifier- BF35 Breathe Smart ## Features - Exact Fit For Alen BreatheSmart Classic Only – This Durabasics 3-stage filter is compatible with Alen BreatheSmart Classic air purifiers only. It will not fit other models. Our replacement Alen BreatheSmart filter helps keep your air clean and machine running smoothly - Combats Odor – The Durabasics replacement Alen air filter features 3 stages. The initial pre-filter and granulated carbon filter are made from activated carbon. These layers combat unpleasant smells from your air. Our replacement Allen BreatheSmart filter can help rid your home from pungent cooking smells, pet odors, and smoke - Removes Particles From Air – The main HEPA filter captures particles from your air. This includes dust, pet fur, dander, and much more. The Durabasics compatible Alen Filter replacement helps keep your air fresh and clean - HEPA 13 Rated – Non-HEPA filters don't pack the same punch when it comes to air quality. The Durabasics compatible Alen air filter replacement is made from HEPA 13 / MERV 17 material to perfectly balance filtration with air flow and room circulation - Helps Reduce Your Bills – Over time, your filter becomes overused and clogged. This can cause your air purifier to work harder and use more electricity. The Durabasics compatible Alen BreatheSmart replacement filter can help keep your machine running efficiently. Spend less on your electricity bill by replacing your filter today ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08D63412B | | Best Sellers Rank | #352,394 in Kitchen ( See Top 100 in Kitchen ) #1,870 in Air Purifier Filters | | Brand | Durabasics | | Brand Name | Durabasics | | Compatible Air Purifier Models | Alen BreatheSmart Classic | | Compatible Devices | Classic & BF35 | | Compatible devices | Classic & BF35 | | Customer Reviews | 4.6 out of 5 stars 193 Reviews | | Item Weight | 3.65 Pounds | | Item weight | 3.65 Pounds | | MERV Rating | 13 | | MERV rating | 13 | | Manufacturer | Durabasics | | Manufacturer Part Number | Classic & BF35 | | Material | HEPA Filter and Carbon Fiber | | Material Type | HEPA Filter and Carbon Fiber | | Model Number | BF35 | | Number of Items | 1 | | Product Grade | lightly used | | UPC | 852332008465 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Durabasics - **Compatible devices:** Classic & BF35 - **Item weight:** 3.65 Pounds - **MERV rating:** 13 - **Material:** HEPA Filter and Carbon Fiber ## Images ![HEPA Filter for Alen Air Purifier Filter Classic, BF35 & Breathe Smart Filter - Durabasics BF35 VOC Filter Fits Alen BreatheSmart Classic Air Purifier - Replacement for Allen Air Filters - Image 1](https://m.media-amazon.com/images/I/81pissiBQnL.jpg) ## Questions & Answers **Q: Does this have the same specifications as the bf35-voc?** A: Yes **Q: Any significant different in quality between this durabasi and alen brand?** A: I do not feel as though there is any difference in this brand as opposed to the brand name, Alen filter **Q: Is this the correct filter for Alen Model A350?** A: I have a BreatheSmart classic **Q: Let's try this again. i have an alen model a350, no other name on it. does this filter fit?** A: Hi Al, Thanks for your question. Unfortunately, this filter is not compatible with your Alen A350 air purifier. I hope that helps and please don't hesitate to reach out if you have any other questions! Regards, Cristy @ Durabasics ## Customer Reviews ### ⭐⭐⭐⭐⭐ Gute Preisleistung *by J***. on 18 July 2026* Alles ok! ### ⭐⭐⭐⭐⭐ An efficient air filter for Alen Air Purifier BF35 Breathe Smart *by D***Y on 15 May 2023* Replacement filter for Alen Air Purifier- BF35 Breathe Smart ### ⭐⭐ Medidas imprecisas igual que la compatibilidad *by F***A on 14 March 2026* Lo tuve que regresar decΓ­a que me funcionaba para mi purificador de aire y la talla no era la correcta ## Frequently Bought Together - Durabasics HEPA Filter Compatible with Alen BreatheSmart Classic & BF35 - Durabasics HEPA Filters Compatible with Alen T500-2 Pack Replacement Filter - Durabasics HEPA Filter Compatible with Alen Fit50 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/305031196-hepa-filter-for-alen-air-purifier-filter-classic-bf35-breathe](https://www.desertcart.sg/products/305031196-hepa-filter-for-alen-air-purifier-filter-classic-bf35-breathe) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-10*