---
product_id: 16170657
title: "Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack)"
brand: "filterbuy"
price: "¥36064"
currency: JPY
in_stock: true
reviews_count: 13
category: "Filterbuy"
url: https://www.desertcart.jp/products/16170657-filterbuy-20x20x1-air-filter-merv-13-smoke-and-allergy-defense
store_origin: JP
region: Japan
---

# 3x longer lifespan than fiberglass Made in USA, recyclable materials MERV 13 filtration power Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack)

**Brand:** filterbuy
**Price:** ¥36064
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe smarter, live better — upgrade your air game now!

## Quick Answers

- **What is this?** Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) by filterbuy
- **How much does it cost?** ¥36064 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/16170657-filterbuy-20x20x1-air-filter-merv-13-smoke-and-allergy-defense)

## Best For

- filterbuy enthusiasts

## Why This Product

- Trusted filterbuy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable dual wire frame resists warping & extreme temps
- • **Effortless Fit:** Universal 20x20x1 size slides in easily for quick replacement
- • **Proudly American:** Crafted in the USA with industrial-grade, eco-friendly materials
- • **Electrostatic Power:** 16 pleats per foot trap microscopic particles with superior efficiency
- • **Elite MERV 13 Defense:** Captures 98% of dust, germs & allergens for cleaner air

## Overview

Filterbuy’s 20x20x1 MERV 13 Air Filters deliver hospital-grade filtration with 98% dust capture using electrostatically charged pleated media. Designed for universal HVAC compatibility, these durable, easy-install filters last 3x longer than fiberglass alternatives and are proudly made in the USA from recyclable materials, ensuring cleaner, healthier indoor air for allergy sufferers and health-conscious homes.

## Description

Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) | Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 19.50 x 0.75) - Replacement Furnace Filters - desertcart.com

Review: The Best Air Filters I've Ever Used for Allergies! - ⭐⭐⭐⭐⭐ The Best Air Filters I've Ever Used for Allergies! I've tried several different air filters over the years, but the Filterbuy 24x36x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) is the first one that has made a truly noticeable difference in the air quality inside our home. I suffer from bad allergies, and after installing these filters, I immediately noticed less sneezing and far less irritation in my throat. They've genuinely been a game changer for our household. The filters arrived quickly, were simple to install, and have lasted much longer than many other brands I've used. Even after weeks of use, they continue to perform well and keep the air feeling cleaner and fresher. It's reassuring knowing they're designed to help capture allergens, dust, and other airborne particles that can make allergy symptoms worse. Pros: Noticeably improves indoor air quality Helped reduce my sneezing and itchy throat Excellent for homes with allergy sufferers Fast shipping and well-packaged Easy to install in just a few minutes Long-lasting filters with excellent performance Great value with a convenient 4-pack Cons: Slightly more expensive than basic air filters, but well worth the investment Higher-efficiency filters may require more frequent replacement in homes with pets or heavy dust Final Verdict: The Filterbuy MERV 13 Smoke & Allergy Defense Air Filters are by far the best filters I've used. They are the first filters that have made a real, noticeable improvement in my allergy symptoms and the overall air quality in our home. Between the long lifespan, easy installation, and outstanding filtration, these filters are absolutely worth every penny. If you struggle with allergies or simply want cleaner indoor air, I highly recommend giving these a try!
Review: Don’t hesitate to replace HVAC filter it worked as expected - I repeatedly purchased this items to replace HEPA filter for my house. Nice quality and cost effective. Fitting is perfect.

## Features

- UNIVERSAL COMPATIBILITY: 20x20x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 19.50" x 19.50" x 0.75")
- MERV 13 PERFORMANCE: Protect your home or business from germs, bacteria, and more with MERV 13 synthetic media (comparable with MPR 1900 & FPR 10) that captures 98% of dust without restricting air flow
- LONG-LASTING FILTRATION: Electrostatically charged media with 16 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance)
- SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures
- MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality that is trusted by millions of homes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00CJZ7OXU |
| Air Filter Construction | Pleated |
| Best Sellers Rank | #797 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #34 in Furnace Filters |
| Brand | Filterbuy |
| Brand Name | Filterbuy |
| Common Applications | Allergen Reduction, Antimicrobial, High Strength |
| Compatible Devices | Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump |
| Compatible Hvac Systems | Commercial, Industrial, Residential |
| Customer Reviews | 4.6 out of 5 stars 21,188 Reviews |
| Filter Airflow Direction | Variable |
| Filter Mounting Type | Slide In |
| Filter Shape | Square |
| Included Components | Air Filters |
| Item Dimensions L x W x Thickness | 19.5"L x 19.5"W x 0.75"Th |
| Item Highlight | Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 19.50 x 0.75) |
| Item Type Name | Air Filter |
| Item Weight | 0.27 g |
| MERV Rating | 13 |
| Manufacturer | Filterbuy |
| Manufacturer Part Number | AFB20x20x1M13pk4 |
| Material | Aluminum, Plastic, Polypropylene |
| Material Type | Aluminum, Plastic, Polypropylene |
| Max Temperature | 200 °F |
| Max Velocity | 615 cfm |
| Model Number | AFB20x20x1M13pk4 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Dimensions | 19.5"L x 19.5"W x 0.75"Th |
| Product Grade | Replacement Parts |
| UPC | 717267055697 |
| Unit Count | 4 Count |
| Warranty Description | Defective items and products that were shipped incorrectly are subject to a refund or replacement on a case by case basis. Please contact our customer support team for more information if you experience any issues. |

## Product Details

- **Brand:** Filterbuy
- **Compatible Devices:** Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump
- **Filter Mounting Type:** Slide In
- **Filter Shape:** Square
- **Item Weight:** 0.27 g
- **MERV Rating:** 13
- **Material:** Aluminum, Plastic, Polypropylene
- **Max Temperature:** 200 °F
- **Product Dimensions:** 19.5"L x 19.5"W x 0.75"Th
- **UPC:** 717267055697

## Images

![Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) - Image 1](https://m.media-amazon.com/images/I/71GTDBLILzL.jpg)
![Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) - Image 2](https://m.media-amazon.com/images/I/8183f-YAzPL.jpg)
![Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) - Image 3](https://m.media-amazon.com/images/I/81ozy0OlV1L.jpg)
![Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) - Image 4](https://m.media-amazon.com/images/I/71EyCxFEcpL.jpg)
![Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) - Image 5](https://m.media-amazon.com/images/I/81mdyu7DN2L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Why should I change my air filter?**
A: To maintain a healthy lifestyle, as breathing dirty air can put you at risk to develop asthma, allergies, and other respiratory ailments. Plus, old filters can cause system defects which may lead to unwanted expenses via energy costs and repairs.

**Q: When should I change my air filter?**
A: We generally recommend replacing your filter every 90 days to keep your system running efficiently and air clean. But this is subject to change based on filter size and variable factors for pet owners, allergy sufferers, homes with children, etc.

**Q: Will these air filters fit my system?**
A: Most of our filters are universally compatible and will work with any furnace, air conditioner, heat pump, or HVAC system as long as you choose the proper size. But if you see a specific brand name on a listing, make sure it matches your unit model.

**Q: How many air filters do I need?**
A: This varies for every customer depending on specific needs such as the number of vents in your home. However, our selection includes package quantities that range from 1 to 12 filters, so no matter what your situation may be, we've got you covered.

**Q: How do I change my air filter?**
A: After finding the right size, turn off the power supply and remove the cover from your intake vent before taking out the old filter. Then just insert your new filter to match the direction of air flow, replace the cover, and turn the power back on.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Best Air Filters I've Ever Used for Allergies!
*by P***. on July 29, 2026*

⭐⭐⭐⭐⭐ The Best Air Filters I've Ever Used for Allergies! I've tried several different air filters over the years, but the Filterbuy 24x36x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) is the first one that has made a truly noticeable difference in the air quality inside our home. I suffer from bad allergies, and after installing these filters, I immediately noticed less sneezing and far less irritation in my throat. They've genuinely been a game changer for our household. The filters arrived quickly, were simple to install, and have lasted much longer than many other brands I've used. Even after weeks of use, they continue to perform well and keep the air feeling cleaner and fresher. It's reassuring knowing they're designed to help capture allergens, dust, and other airborne particles that can make allergy symptoms worse. Pros: Noticeably improves indoor air quality Helped reduce my sneezing and itchy throat Excellent for homes with allergy sufferers Fast shipping and well-packaged Easy to install in just a few minutes Long-lasting filters with excellent performance Great value with a convenient 4-pack Cons: Slightly more expensive than basic air filters, but well worth the investment Higher-efficiency filters may require more frequent replacement in homes with pets or heavy dust Final Verdict: The Filterbuy MERV 13 Smoke & Allergy Defense Air Filters are by far the best filters I've used. They are the first filters that have made a real, noticeable improvement in my allergy symptoms and the overall air quality in our home. Between the long lifespan, easy installation, and outstanding filtration, these filters are absolutely worth every penny. If you struggle with allergies or simply want cleaner indoor air, I highly recommend giving these a try!

### ⭐⭐⭐⭐⭐ Don’t hesitate to replace HVAC filter it worked as expected
*by T***A on August 6, 2026*

I repeatedly purchased this items to replace HEPA filter for my house. Nice quality and cost effective. Fitting is perfect.

### ⭐⭐⭐⭐⭐ Room air quality improved.
*by D***S on September 18, 2026*

I change every 2 months. I’m happy with them. My air quality is improved.

## Frequently Bought Together

- Filterbuy 20x20x1 Air Filter MERV 13 Optimal Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 19.50 x 0.75 Inches)
- Genesis 20" Box Fan, 3 Settings, Max Cooling Technology, Carry Handle, White (G20BOX-WHT)

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-05*