---
product_id: 298605714
title: "311 Replacement Filter"
brand: "mbetter"
price: "AR$136142"
currency: ARS
in_stock: null
reviews_count: 8
url: https://www.desertcart.com.ar/products/298605714-311-replacement-filter
store_origin: AR
region: Argentina
---

# 9-month optimal filter lifespan 99.99% particle capture @ 0.03μm 2-in-1 HEPA + activated carbon combo 311 Replacement Filter

**Brand:** mbetter
**Price:** AR$136142
**Availability:** ❌ Out of Stock

## Summary

> 🌬️ Breathe smarter, live fresher — don’t let stale air hold you back!

## Quick Answers

- **What is this?** 311 Replacement Filter by mbetter
- **How much does it cost?** AR$136142 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/298605714-311-replacement-filter)

## Best For

- mbetter enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Freshness:** Replace every 9 months to maintain peak purifier performance
- • **Superior Particle Capture:** Filters out microscopic pollutants down to 0.03 micrometers
- • **Trusted Quality & Support:** High-grade materials backed by responsive 24-hour customer service
- • **Dual-Action Filtration Power:** HEPASilent tech plus activated carbon for ultra-clean air
- • **Precision Fit for Blueair 311 Auto:** Seamless compatibility ensures hassle-free replacement

## Overview

This 2-pack of Mbetter replacement filters is engineered exclusively for the Blueair Blue Pure 311 Auto air purifier. Featuring a 2-in-1 design combining HEPASilent filtration and activated carbon, these filters capture 99.99% of airborne particles as small as 0.03 micrometers. Designed for optimal performance, each filter lasts up to 9 months, ensuring your environment stays fresh and pollutant-free. Easy to install and backed by responsive customer support, these filters keep your air purifier running at peak efficiency.

## Description

2 Pack 311 Auto Filters Replacement, Compatible with Blueair Blue Pure 311 Auto Air Purifier, 2 in 1 HEPASilent and Activated Carbon Filter

## Features

- 【PERFECT FIT】Compatible with Blueair Blue Pure 311 Auto air purifier. Attention: Not include with 311 (Non-auto)
- 【NOTE】Not compatible with Blue Pure 311, 311i Max, 311i+ Max, 211, 211+ Auto, 211i Max, 411, 411 Auto, 411i Max, 511, 511i Max, Mini Max air puri-fier
- 【True Air Filter】Our 311 Auto replacement filter made of air filter and a high-efficiency activated carbon filter for good clean filtration and performance
- 【OPTIMAL PERFORMANCE MAINTENANCE】For the ongoing top performance of your Blue Pure 311 Auto Air Puri-fier, based on actual usage the filter should be replaced within 9 months
- 【SUPERIOR QUALITY】311 Auto replacement filter is made of high-quality non-woven activated carbon and can adsorb 99.99% of air particles (with a diameter as small as 0.03 micrometers)
- 【LIFETIME SERVICE】If you have any problems with the filter fitting your air purifier, please contact us through our desertcart home page, we will reply in 24 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | Mbetter |
| Model Info | mb311 |
| Item Weight | 1.57 pounds |
| Product Dimensions | 15 x 13.4 x 3.5 inches |
| Item model number | mb311 |
| Part Number | mb311 |
| Compatible Device | Air Purifier |
| Material Type | Activated Carbon Filter |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Mbetter
- **Material:** Activated Carbon Filter
- **Product Dimensions:** 15"L x 13.4"W x 3.5"Th
- **MERV Rating:** 13
- **Compatible Devices:** Air Purifier
- **UPC:** 194467119419
- **Number of Items:** 2
- **Manufacturer:** Mbetter
- **Product Grade:** new
- **Unit Count:** 2.0 Count

## Images

![311 Replacement Filter - Image 1](https://m.media-amazon.com/images/I/71J9K90-bQL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit and quality for less money ✅💰
*by L***  on June 27, 2025*

The media could not be loaded. These replacement filters for the Blue Air 311i Max deliver exactly what I needed. The functionality is excellent they trap dust, pet dander, and odors effectively. It is easy to slide right into place without any struggle and the size is perfectly compatible with the blue air 311i Max just like the original filter.The quality feels premium the materials are sturdy, and the layers of HEPA and activated carbon are dense and well-made. I also appreciate that it comes in a 2-pack, which adds a great value for money , especially compared to the branded replacements.Highly recommend for anyone looking for reliable, high-quality filters that don’t break the bank!

### ⭐⭐⭐⭐⭐ Fits great!
*by M***3 on June 7, 2025*

Fit exactly, machine accepted it and cleared the error. Very happy and bookmarked for re-order in future.

### ⭐⭐⭐⭐⭐ Worth every penny
*by T***K on March 12, 2025*

I will never buy any other brand when it come to air purification in my home. Find the size that works for you and get your Blueair in your home yesterday!

## Frequently Bought Together

- 2 Pack 311 Auto Filters Replacement，Compatible with Blueair Blue Pure 311 Auto Air Purifier，2 in 1 HEPASilent and Activated Carbon Filter
- BLUEAIR Air Purifiers for Large Rooms, Cleans 3,048 Sqft In One Hour, HEPASilent Smart Air Cleaner For Home, Pets, Allergies, Virus, Dust, Mold, Smoke - Blue Pure 211i Max

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**Shop now:** [https://www.desertcart.com.ar/products/298605714-311-replacement-filter](https://www.desertcart.com.ar/products/298605714-311-replacement-filter)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-01-22*