--- product_id: 22735880 title: "Winfi AZ20201 Air Filter for Allergy Sufferers, 20 x 20 x 1\"" brand: "winfi" price: "2.81 DT" currency: TND in_stock: false reviews_count: 8 url: https://www.desertcart.tn/products/22735880-winfi-az20201-air-filter-for-allergy-sufferers-20-x-20 store_origin: TN region: Tunisia --- # Winfi AZ20201 Air Filter for Allergy Sufferers, 20 x 20 x 1" **Brand:** winfi **Price:** 2.81 DT **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Winfi AZ20201 Air Filter for Allergy Sufferers, 20 x 20 x 1" by winfi - **How much does it cost?** 2.81 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/22735880-winfi-az20201-air-filter-for-allergy-sufferers-20-x-20) ## Best For - winfi enthusiasts ## Why This Product - Trusted winfi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Founded in 2002 by a leading allergist, AllergyZone, LLC provides cost-effective, evidenced-based solutions for the avoidance of airborne contaminants that can trigger allergy and asthma exacerbations. AllergyZone furnace and air conditioning filters are recommended by allergy and asthma physicians and proven effective in a Healthy Home study, supported in part by The Department of Housing and Urban Development (HUD). The study demonstrated a decrease in asthma related symptoms (wheezing and cough) when HVAC systems were serviced and an AllergyZone was installed. Another real-world study confirmed capture of animal, pollen, and mold allergens by the filter in residential HVAC systems. AllergyZone filters provide superior performance in three crucial areas, which we call the Filter Quality Triangle. Holding Capacity: AllergyZone filters hold up to 60% more dirt than other brands. Air Flow: AllergyZone filters allow for optimum airflow as they load with dirt. Efficiency: AllergyZone filters remove up to 95% of many airborne allergens. Each filter is constructed with premium grade components, including a 2-piece double wall frame for durability in the air stream. The unique, dual-layer electrostatic filtration media is composed of synthetic fibers that do not support microbial growth. The pleated media configuration is 500% more effective than ordinary fiberglass air filters. Each filter is individually sealed in plastic to insure cleanliness prior to installation. Johnson L, Ciaccio C, Barnes CS, Kennedy K, et al. Low-cost interventions improve indoor air quality and children's health. Allergy Asthma Proc. 2009 Jul-Aug;30(4):377-85. Barnes CS, Allenbrand R, Mohammed M, Gard L. et al Measurement of aeroallergens from furnace filters. Ann Allergy Asthma Immunol. 2015 Mar;114(3):221-5. ## Features - Proven effective in a clinical trial - Lasts up to 90 days between filter changes - Designed and recommended by leading allergy and asthma doctors for symptom relief ## Images ![Winfi AZ20201 Air Filter for Allergy Sufferers, 20 x 20 x 1" - Image 1](https://images-na.ssl-images-amazon.com/images/I/61Cx-YV-xzL.jpg) ![Winfi AZ20201 Air Filter for Allergy Sufferers, 20 x 20 x 1" - Image 2](https://images-na.ssl-images-amazon.com/images/I/71mRckxIkiL.jpg) ![Winfi AZ20201 Air Filter for Allergy Sufferers, 20 x 20 x 1" - Image 3](https://images-na.ssl-images-amazon.com/images/I/71IoZor0PxL.jpg) ![Winfi AZ20201 Air Filter for Allergy Sufferers, 20 x 20 x 1" - Image 4](https://images-na.ssl-images-amazon.com/images/I/71u2XOGUP6L.jpg) ![Winfi AZ20201 Air Filter for Allergy Sufferers, 20 x 20 x 1" - Image 5](https://images-na.ssl-images-amazon.com/images/I/71-C0q6QeDL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Just ordered our 2nd!! *by S***K on Reviewed in the United States on November 12, 2014* We just moved into the home we built on the edge of the city (in a new development)... Our allergens:1) Ragweed in nearby fields2) Red dusty dirt in the wind/breeze (west Texas can get windy. Haboob, anyone?)3) Cotton harvesting/ ginning4) New House smell (paints/ adhesives)This filter has successfully removed the majority of the smells inside the house, as well as the one time I burnt a tortilla. Warning, it WILL ALSO remove candle scents. Sad, but at least I know the thing is effective. Allergy meds were not working for us, but with the filter, we are getting relief from the meds. That's saying a lot, since we are literally surrounded by ragweed--tall as a car--until it freezes and dies. We think this filter is worth every cent. It says to change every 3 months, but because of the overload of dirt in our air, we are going to change it at 4-6 weeks. Too many reviews on high-quality filters say it taxed their A/C/ furnace for us not to be on the safe side. ### ⭐⭐⭐⭐⭐ This is a great filter! We have 3 cats in the house ... *by M***E on Reviewed in the United States on July 13, 2018* This is a great filter! We have 3 cats in the house and it really helps with all the cat hair. ### ⭐⭐⭐⭐ Decent price *by A***G on Reviewed in the United States on August 28, 2018* Work as expected, could be cheaper --- ## 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.tn/products/22735880-winfi-az20201-air-filter-for-allergy-sufferers-20-x-20](https://www.desertcart.tn/products/22735880-winfi-az20201-air-filter-for-allergy-sufferers-20-x-20) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-01*