---
product_id: 298605714
title: "2 Pack 311 Auto Filters Replacement, Compatible with Blueair Blue Pure 311 Auto Air Purifier, 2 in 1 HEPASilent and Activated Carbon Filter"
brand: "mbetter"
price: "691 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Mbetter"
url: https://www.desertcart.ro/products/298605714-2-pack-311-auto-filters-replacement-compatible-with-blueair-blue
store_origin: RO
region: Romania
---

# 9-month optimal replacement cycle 2-in-1 HEPA + Activated Carbon Filters 99.99% particles ≥0.03μm 2 Pack 311 Auto Filters Replacement, Compatible with Blueair Blue Pure 311 Auto Air Purifier, 2 in 1 HEPASilent and Activated Carbon Filter

**Brand:** mbetter
**Price:** 691 Lei
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 2 Pack 311 Auto Filters Replacement, Compatible with Blueair Blue Pure 311 Auto Air Purifier, 2 in 1 HEPASilent and Activated Carbon Filter by mbetter
- **How much does it cost?** 691 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/298605714-2-pack-311-auto-filters-replacement-compatible-with-blueair-blue)

## 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

- • **Value-Packed Duo:** Two filters in one pack—double the freshness, double the savings, zero compromises.
- • **Dual-Action Filtration:** HEPASilent tech plus activated carbon traps dust, odors, and microscopic pollutants effortlessly.
- • **Long-Lasting Freshness:** Maintain peak air quality with a recommended 9-month filter replacement cycle.
- • **Seamless Compatibility:** Perfectly engineered for Blueair Blue Pure 311 Auto—no guesswork, just pure fit.
- • **Premium Quality Materials:** High-grade non-woven activated carbon ensures superior adsorption and durability.

## Overview

This 2-pack replacement filter set is designed exclusively for the Blueair Blue Pure 311 Auto air purifier, combining advanced HEPASilent filtration with activated carbon to capture 99.99% of airborne particles as small as 0.03 micrometers. Engineered for optimal performance over 9 months, these premium filters ensure cleaner, fresher air while offering excellent value and effortless installation.

## Description

desertcart.com: Mbetter 2 Pack 311 Auto Filters Replacement, Compatible with Blueair Blue Pure 311 Auto Air Purifier, 2 in 1 HEPASilent and Activated Carbon Filter : Home & Kitchen

Review: Perfect fit and quality for less money ✅💰 - 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!
Review: Excellent Fit and Function - Fits perfectly. Works well.

## Features

- ✅【PERFECT FIT】Compatible with Blueair Blue Pure 311 Auto⭕ air purifier. NOT compatible with Blueair 311❌
- ❎【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)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08V4PNGJD |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #43,606 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #283 in Air Purifier Filters |
| Brand Name | Mbetter |
| Color | white |
| Compatible Device | Air Purifier |
| Customer Reviews | 4.3 4.3 out of 5 stars (628) |
| Date First Available | January 27, 2021 |
| Included Components | No |
| Item Weight | 1.6 pounds |
| Item model number | 311 Auto |
| Material Type | Activated Carbon Filter |
| Model Info | 311 Auto |
| Part Number | mb311 |
| Product Dimensions | 15 x 13.4 x 3.5 inches |

## Product Details

- **Air Filter Construction:** Pleated
- **Brand:** Mbetter
- **Compatible Devices:** Air Purifier
- **EU Spare Part Availability Duration:** 9 Months
- **Item Weight:** 1.6 Pounds
- **MERV Rating:** 13
- **Material:** Activated Carbon Filter
- **Number of Items:** 2
- **Product Dimensions:** 1"L x 1"W x 1"Th
- **UPC:** 194467119419

## Images

![2 Pack 311 Auto Filters Replacement, Compatible with Blueair Blue Pure 311 Auto Air Purifier, 2 in 1 HEPASilent and Activated Carbon Filter - Image 1](https://m.media-amazon.com/images/I/71J9K90-bQL.jpg)

## Questions & Answers

**Q: Mbetter's 311 Auto Air Purifying Filter Operating Rate**
A: Low-drag fiber technology maintains the original CADR, providing a complete air exchange every 12 minutes in rooms up to 161 sq. ft

**Q: How does Mbetter's air filter effectively absorb odors?**
A: Upgraded honeycomb carbon structure with increased surface area specifically for neutralizing persistent kitchen grease smells and second-hand smoke

**Q: How to reset the machine?**
A: Press and hold the power button for 10s until the light flashes. Our filter is fully compatible with the internal sensor system (It depends on whether the actual machine has a reset function and supports connecting a new filter)

**Q: Is this the foldable version or the round rigid one?**
A: Unfold to get a round replacement filter, specifically matching the design of the Blue Pure 311 Auto. It unfolds to fit the filter cage perfectly, ensuring no air bypass

## Customer Reviews

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

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!

### ⭐⭐⭐⭐⭐ Excellent Fit and Function
*by B***6 on January 14, 2026*

Fits perfectly. Works well.

### ⭐⭐⭐⭐⭐ works and fits great
*by T***O on January 11, 2026*

Good price fits like original filters. At 1/2 the price I’m willing to buy these.

## 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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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-02*