--- product_id: 3137213 title: "Alen Classic Replacement Air Filter for BreatheSmart Classic (NOT FOR 35i) — True HEPA Filter to Remove Dust, Pollen and Small Particles — Air Cleaner for Allergy and Asthma Suffers — 1 Filter" brand: "alen" price: "$231.97" currency: USD in_stock: true reviews_count: 8 category: "Alen" url: https://www.desertcart.us/products/3137213-alen-classic-replacement-air-filter-for-breathesmart-classic-not-35i store_origin: US region: United States of America --- # Lasts up to 12 months Cleans 1,100 sq.ft every 30 min H13 True HEPA captures 99.99% >0.1μm Alen Classic Replacement Air Filter for BreatheSmart Classic (NOT FOR 35i) — True HEPA Filter to Remove Dust, Pollen and Small Particles — Air Cleaner for Allergy and Asthma Suffers — 1 Filter **Brand:** alen **Price:** $231.97 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe smarter, live better—because your air deserves the best. ## Quick Answers - **What is this?** Alen Classic Replacement Air Filter for BreatheSmart Classic (NOT FOR 35i) — True HEPA Filter to Remove Dust, Pollen and Small Particles — Air Cleaner for Allergy and Asthma Suffers — 1 Filter by alen - **How much does it cost?** $231.97 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/3137213-alen-classic-replacement-air-filter-for-breathesmart-classic-not-35i) ## Best For - alen enthusiasts ## Why This Product - Trusted alen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Asthma & Allergy Ally:** Expertly engineered to reduce dust, pollen, pet dander, and VOCs, easing respiratory discomfort. - • **Long-Lasting Freshness:** Enjoy a full year of cleaner air with a single filter replacement—less hassle, more health. - • **Seamless Compatibility:** Specifically designed for Alen BreatheSmart Classic—effortless installation and guaranteed performance. - • **Medical-Grade Air Defense:** H13 True HEPA filter traps 99.99% of microscopic allergens and pollutants for pristine indoor air. - • **Wide Coverage, Fast Refresh:** Purifies up to 1,100 sq.ft every 30 minutes—perfect for home, office, or apartment living. ## Overview The Alen Classic Replacement Air Filter is a premium H13 True HEPA filter designed exclusively for the BreatheSmart Classic air purifier. It efficiently cleans 1,100 square feet of air every 30 minutes by capturing 99.99% of airborne particles as small as 0.1 microns, including dust, pollen, and VOCs. Engineered for allergy and asthma sufferers, this long-lasting filter provides up to 12 months of superior air purification, ensuring healthier indoor environments in homes, offices, and apartments. ## Description Our HEPA air filter replacement is specifically designed for the Alen BreatheSmart Classic air purifier. When inserted into the BreatheSmart, this filter can clean 1,100 SqFt. of air every 30 minutes. This Alen air purifier filter is fantastic for an allergy sufferer in your home. The filter's medical-grade H13 True HEPA layer removes 99.99% of airborne particles larger than 0.1 micron. It's great for removing allergens and harmful fine pollutants. This high-quality product is made to be one of our finest allergy filters. It scrubs the air of dust and pollen particles that can be an unwanted nuisance for people with asthma and other medical issues related to air quality. Our Breathesmart replacement cartridge is manufactured to be long-lasting. Using our filter, you'll get up to 12 months of pure air production in your home, apartment, or office space. Alen air purifiers for homes make it easy to purchase replacement air filters. Simply look on the top panel of the unit to find out which type of air filter you'll need to order. For this filter, the writing on the purifier should read "BreatheSmart." Review: Great filters for an even greater air purifier - Great filters for an even greater air purifier. The BreatheSmart has a wide range and it just makes the area feel fresh and odor free. These filters aren't cheap, but they get the job done. Plus they last several months so at least it's not a regular expense. I would recommend Alen and any of their products, and their customer service is top notch. Review: works well - love the product ## Features - REPLACEMENT AIR FILTER: Our HEPA air filter replacement is specifically designed for the Alen BreatheSmart Classic air purifier. Insert our air purifier filter into the BreatheSmart and watch it clean 1,100 sq. ft. of air every 30 minutes. - EFFECTIVE AIR PURIFIER FILTER: This Alen air purifier filter replacement is fantastic for better air in your home. The HEPA filter replacement features a medical-grade H13 True HEPA layer that captures 99.9% of airborne particles larger than 0.1 micron. These HEPA filters are great for capturing dust, allergens, and harmful fine pollutants. - GENUINE ALEN REPLACEMENT FILTERS: This high-quality air filter replacement is made to be one of our finest allergy filters. It scrubs the air of dust and pollen particles that can be an unwanted nuisance for people with asthma and other medical issues related to air quality. - LONG-LASTING PURE AIR FILTER: Our BreatheSmart replacement air filters for air purifiers is manufactured to be long-lasting. Using our air purifier replacement filter, you'll get up to 12 months of pure air production in your home, apartment, or office space. - TRANSFORM YOUR INDOOR AIR WITH ALEN: Here at Alen, we are dedicated to improving the quality of people’s lives by researching and developing cleverly designed and expertly crafted air purifying solutions that will utterly transform the air quality inside of virtually any indoor environment. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BWSB2P6 | | Best Sellers Rank | #49,930 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #311 in Air Purifier Filters | | Brand | Alen | | Brand Name | Alen | | Color | Hepa-pure | | Contaminant Filtration Capability | dust, pet_dander, pollen, volatile_organic_compounds_(vocs) | | Control Method | Touch | | Customer Reviews | 4.7 out of 5 stars 192 Reviews | | Filter Class | HEPA | | Filter Type | HEPA | | Floor Area | 1100 square_feet | | Global Trade Identification Number | 00893127001520 | | Item Type Name | Alen Replacement Air Filter for BreatheSmart Classic | | Item Weight | 16 ounces | | Manufacturer | Alen | | Model Number | BF35 | | Part Number | BF35 | | Particle Retention Size | 0.1 micron | | Special Features | Basic air filter offers a True HEPA Filter to capture 99.97% of airborne particles down to 0.3 microns | | Specification Met | certified frustration-free | | UPC | 893127001520 | | Unit Count | 1 Count | | Warranty Description | All alen's air purifiers include a warranty if used in the contiguous united states only. | ## Images ![Alen Classic Replacement Air Filter for BreatheSmart Classic (NOT FOR 35i) — True HEPA Filter to Remove Dust, Pollen and Small Particles — Air Cleaner for Allergy and Asthma Suffers — 1 Filter - Image 1](https://m.media-amazon.com/images/I/61cWzZyRseL.jpg) ![Alen Classic Replacement Air Filter for BreatheSmart Classic (NOT FOR 35i) — True HEPA Filter to Remove Dust, Pollen and Small Particles — Air Cleaner for Allergy and Asthma Suffers — 1 Filter - Image 2](https://m.media-amazon.com/images/I/81fTxcaS3DL.jpg) ![Alen Classic Replacement Air Filter for BreatheSmart Classic (NOT FOR 35i) — True HEPA Filter to Remove Dust, Pollen and Small Particles — Air Cleaner for Allergy and Asthma Suffers — 1 Filter - Image 3](https://m.media-amazon.com/images/I/71q4dfGw7fL.jpg) ![Alen Classic Replacement Air Filter for BreatheSmart Classic (NOT FOR 35i) — True HEPA Filter to Remove Dust, Pollen and Small Particles — Air Cleaner for Allergy and Asthma Suffers — 1 Filter - Image 4](https://m.media-amazon.com/images/I/71nzSFM1AIL.jpg) ![Alen Classic Replacement Air Filter for BreatheSmart Classic (NOT FOR 35i) — True HEPA Filter to Remove Dust, Pollen and Small Particles — Air Cleaner for Allergy and Asthma Suffers — 1 Filter - Image 5](https://m.media-amazon.com/images/I/71eMghZV3uL.jpg) ## Available Options This product comes in different **Pattern, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great filters for an even greater air purifier *by A***B on October 23, 2017* Great filters for an even greater air purifier. The BreatheSmart has a wide range and it just makes the area feel fresh and odor free. These filters aren't cheap, but they get the job done. Plus they last several months so at least it's not a regular expense. I would recommend Alen and any of their products, and their customer service is top notch. ### ⭐⭐⭐⭐⭐ works well *by M***N on May 20, 2024* love the product ### ⭐⭐⭐⭐⭐ Excellent product. *by D***K on February 7, 2020* Helps keep my living spaces free from dust mites and mold. They improve air quality. --- ## 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.us/products/3137213-alen-classic-replacement-air-filter-for-breathesmart-classic-not-35i](https://www.desertcart.us/products/3137213-alen-classic-replacement-air-filter-for-breathesmart-classic-not-35i) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-13*