# Miuwauer 6 Inch Backdraft Damper | Prevents Airflow When Fan is Off **Brand:** Miuwauer **SKU:** kzd9516 **ASIN:** B09R1HSG44 **Canonical URL:** https://crowcrowcrow.com/p/6in-backdraft-damper-back-draft-vent-duct-shutter-blocker-backflow-ducting-insert-one-way/kzd9516 **Category:** home-kitchen **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹2,217 **Discount:** 28% **Customer rating:** 4.30/5 from 197 ratings ## Description Miuwauer 6 Inch Backdraft Damper prevents unwanted airflow and cold air entry into your home. Made from galvanized steel with stainless steel parts, it features spring-loaded blades for an airtight seal. Ideal for HVAC, dryer vents, and exhaust fans. Imported for India, all duties included. ## Highlights - Prevents Cold Air & Drafts — Stops unwanted cold air or wind from entering ventilation ducts, maintaining a comfortable indoor temperature and reducing energy loss from your HVAC system. - Airtight Seal — Features a rubber gasket and spring-loaded folding blades that create an airtight seal, preventing air leakage and ensuring efficient airflow control. - Durable Construction — Made from galvanized steel with aluminum flap leaves and stainless steel axis and spring, designed to withstand temperatures up to 50°C for long-lasting performance. - Versatile HVAC Application — Ideal for AC, dryer vents, exhaust hoods, heating systems, fans, and other residential or commercial HVAC applications, fitting into flexible or non-flexible ducts. ## Key features - 【Quality Material】The backdraft damper is made of galvanized steel, the flap leaves are made of aluminu, and the axis and spring are made of stainless steel, which can withstand temperatures up to 50°C - 【Practical Features】The air duct choke prevents cold air or wind from entering the ventilation duct. The backflow flap opens and closes automatically at low air volumes. The valve is equipped with a smooth-running spring and a rubber gasket that create an airtight seal and grip between the damper and ducts - 【Easy Installation 】The backflow prevention valve is installed by pushing it into the ventilation duct to make it as mobile as possible. When the valve flap is installed horizontally, the position of the spring should be horizontal so that the valve flap can be opened and closed optimally. This also applies to vertical installation. Same for vertical installation - 【Multiple Usages】The draft blocker is designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial HVAC applications. The back draft damper can be inserted into a flexible or non-flexible ventilation duct - 【Needs Attention 】This airflow regulating backdraft shutter is installed on the TD lip to improve ventilation by preventing air circulation when the fan is not in use. Plastic pipes are of different sizes and cannot be used with plastic pipes ## Why choose this product **Engineered for Efficient Airflow Control** — This Miuwauer backdraft damper uses a spring-loaded folding blade system and a rubber gasket to create an airtight seal, effectively preventing unwanted airflow. Unlike basic vent covers, its automatic low-volume air control ensures it responds precisely to your system's needs. Constructed from galvanized steel and stainless steel, it offers superior durability and resistance to temperature fluctuations, ensuring reliable performance in your HVAC system for years to come. Imported directly from authorized US retailers, it meets stringent quality standards. **Ideal for Homes Needing Draft Prevention** — This damper is perfect for homes experiencing cold drafts from ventilation systems or for those wanting to prevent backflow from exhaust fans. It's particularly useful in areas with strong winds or fluctuating outdoor temperatures. However, if you are installing in a plastic pipe system, this 6-inch metal damper may not be compatible due to size differences. For such applications, consider flexible plastic vent solutions. ## How to use 1. Ensure you have a compatible ventilation duct (not plastic pipes) and the correct size, in this case, 6 inches. Verify the fan or vent system is powered off and safe to work with. — Prepare for Installation 2. Carefully push the backdraft damper into the ventilation duct. Position it so the spring-loaded folding blades are oriented correctly for optimal airflow control, whether the duct is installed horizontally or vertically. — Insert the Damper 3. Confirm the damper is snugly fitted within the duct. The rubber gasket and spring-loaded blades work together to create an airtight seal, preventing any unwanted air leakage or backflow when the fan is not in use. — Ensure Airtight Seal ## Product details | Field | Value | |---|---| | Application | HVAC, AC, Dryer Vent, Exhaust Hood, Heating Systems, Fans | | Compatibility | Flexible or non-flexible ventilation ducts (not for plastic pipes) | | Installation | Push into duct; position spring horizontally for optimal flap operation | | Cost per use | N/A | | Shelf life after opening | N/A | | Reapplication math | N/A | | Contraindications | Not for use with plastic pipes | | Allergens / common irritants | None stated | | Brand | Miuwauer | | Size | 6 Inch | | Material | Galvanized Steel, Aluminum, Stainless Steel | | Temperature Resistance | Up to 50°C | | Installation Type | Inline Duct Insert | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### How do I install this 6-inch backdraft damper? Install the damper by pushing it into the ventilation duct. Ensure the spring is positioned horizontally for optimal flap operation, whether installing horizontally or vertically. The goal is to make it as mobile as possible within the duct. ### What is the best building material for preventing drafts? For preventing drafts in ventilation systems, a backdraft damper made from durable materials like galvanized steel with stainless steel components, as found in this Miuwauer 6-inch model, is highly effective. It ensures an airtight seal and automatic airflow control. ### Are building materials healthy for my home? This Miuwauer backdraft damper is constructed from galvanized steel, aluminum, and stainless steel, which are generally considered safe for HVAC applications. It helps maintain indoor air quality by preventing the entry of cold air and backflow, contributing to a healthier home environment. ### How can I choose the right building material for my HVAC system? When selecting HVAC components like a backdraft damper, consider the duct size, material durability, and intended application. This 6-inch galvanized steel damper is suitable for various HVAC systems, dryer vents, and exhaust hoods, ensuring efficient airflow control. ### How do I use a backdraft damper effectively? Install the damper in your ventilation duct so it can automatically open and close with airflow. This Miuwauer damper prevents cold air entry and backflow when fans are off, ensuring your system's efficiency and maintaining indoor comfort. ### What is the best building material for airflow control? The Miuwauer 6-inch backdraft damper is an excellent choice for airflow control. Its galvanized steel construction, spring-loaded blades, and airtight seal ensure it effectively prevents backflow and maintains desired air conditions within your HVAC system. ### Can I use this building material daily? Yes, this backdraft damper is designed for continuous use in HVAC systems, dryer vents, and exhaust fans. Its durable construction ensures reliable daily operation, automatically managing airflow and preventing unwanted drafts. ### What are the side effects of using this building material? There are no direct side effects from using this backdraft damper. Its purpose is to improve ventilation efficiency and prevent drafts. Ensure it is installed correctly in compatible ducting (not plastic pipes) for optimal performance. ### What are the benefits of this building material? The benefits include preventing cold air and wind entry, automatic airflow control, an airtight seal, and durable construction. It helps maintain indoor comfort, improves HVAC efficiency, and is suitable for various ventilation applications. ## Compliance No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging. ## Images 1. https://images.crowcrowcrow.com/B09R1HSG44-0.webp 2. https://images.crowcrowcrow.com/B09R1HSG44-3.webp 3. https://images.crowcrowcrow.com/B09R1HSG44-6.webp 4. https://images.crowcrowcrow.com/B09R1HSG44-9.webp 5. https://images.crowcrowcrow.com/B09R1HSG44-12.webp 6. https://images.crowcrowcrow.com/B09R1HSG44-15.webp --- Source: https://crowcrowcrow.com/p/6in-backdraft-damper-back-draft-vent-duct-shutter-blocker-backflow-ducting-insert-one-way/kzd9516 Returns: 14 days, free pickup, full refund on genuine issues. Shipping: Free across India, 6-8 days. Prices are all-inclusive (duties + GST).