# Mbetter 511i Max Replacement Filters, 2-Pack

Mbetter 511i Max replacement filters are listed as a two-pack for the Blue Pure 511i Max air purifier. The listing describes non-woven fabric and activated carbon construction, and specifically warns that these filters do not fit the Blue Pure 511.

- [Original product page](https://best-deals.pro/product/mbetter-511i-max-replacement-filters-2-pack)
- [View offer](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Mbetter
- Model: 511i Max
- Category: Home & Kitchen > Appliance Parts & Accessories > Air & HVAC Filters
- Price: 27.54 USD
- Previous price: 32.99 USD
- Discount: 17%
- Price checked: 2026-11-14T06:37:36.267Z
- Rating: 4.7 / 5
- Reviews: 81

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing states compatibility with the Blue Pure 511i Max and explicitly excludes the Blue Pure 511.
- Described as non-woven fabric with activated carbon for particle filtration and household odors.
- Manufacturer recommends cleaning every 2–4 weeks and replacing every 4–6 months.

## Pros

- Two filters are listed, allowing a replacement to be kept on hand.
- Activated carbon is included in the described construction, with the listing positioning it for cooking, pet, and smoke odors.

## Specifications

### Identity
- Brand: Mbetter
- Model: 511i Max
### Dimensions and installation
- Dimensions listed: 11.2"L x 2.7"W x 8"Th
### Materials and protection
- Material listed: filters

## Before you buy

- Compatibility is specifically claimed for the Blue Pure 511i Max, not the Blue Pure 511. Confirm the purifier model before ordering. The listing claims 99.97% filtration of particles as small as 0.3 microns and a 4–6 month replacement interval, which are manufacturer statements rather than independently verified results. It also says the purifier’s reset function depends on the machine.

## In the box

- No (Included): Listed as the included components entry.

## A good fit for

- Owners of a Blue Pure 511i Max seeking two replacement filters.
- Buyers looking for a filter listing that specifies activated carbon and a cleaning and replacement schedule.

## Less suited to

- Owners of a Blue Pure 511 or another purifier model, since the listing says it is not compatible with the Blue Pure 511.

## Customer feedback

Only aggregate ratings are available, with a generally favorable distribution alongside a small one-star share. Those figures do not identify specific strengths, problems, or compatibility outcomes, so they offer limited guidance beyond indicating varied customer ratings.

## Frequently asked questions

### Which purifier is this filter listed for?
The listing names the Blue Pure 511i Max and says it is not compatible with the Blue Pure 511. Check the exact model on your purifier.
### What materials are described?
The listing describes non-woven fabric and activated carbon.
### How often does the listing recommend cleaning and replacement?
It recommends cleaning every 2–4 weeks and replacing every 4–6 months. Actual service needs can depend on use and conditions.
### Does the listing say the filter reset will work?
It claims compatibility with the internal sensor system, but says reset support depends on whether the purifier has a reset function and supports a new filter.

## Alternative options

- [Blue Pure 511 Replacement Filter for Blueair Blue Pure 511 Air Purifier \| 2-in-1 Main Filters with Particle and Activated Carbon Replacement Filter \(Not Fit for 511 Auto\), 2 Pack](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [PuriCare 360 Filter Replacement for LG PuriCare 360 Air Purifier, AS601HBB0 \| 3-in-1 Filtration, HEPA+ Activated Carbon+Pre-Filter, for Home Large Small Room Bedroom up to 2059 ft² Air Clean, 1 Pack](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [211i Max Replacement Filter for BLUEAIR Blue Pure 211i Max Air Purifier \| Ture HEPA & Activated Carbon Replacement Filter, 2 Pack](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [Blue Pure Replacement Filter for Blueair 411, 411+, 411 Auto Air Purifier \| 2-IN-1 Efficient Particulate Activated Carbon 411, 411+, 411 Auto and MINI Filter for Smoke, Pet Dander, Odors, Pollen,3 Pack](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [511i MAX Replacement Filter Compatible with BLUEAIR Blue Pure 511i Max \| Air Purifi...](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [511 AllergenBlock Replacement Filter for Blueair Blue Pure 511 Air Purifier \| True H13 HEPA Filters, and Activated Carbon Filter, BLUE, 2 Pack](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [211i Max Replacement Filter Compatible with Blue Pure 211i Max Air Purifier \| 2-in-1 Air Purifier Replacement Filter, Compatible with Blueair Blue Pure 211i Max Air Purifier, White, 2 Pack](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [511i Max Filter Replacement Compatible with Blue Pure 511i Max Air Purifier \| 511i ...](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [2 Packs Pre-Filter Replacement Cover Compatible with Blueair Blue Pure 511 Air Puri...](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [4 Sets 511i Max Replacement Filter Compatible with Bleuair Blue Pure 511i Max Air C...](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [Blue Pure 511i Max Replacement Filter Compatible with 511i Max Air Purifier, H13 Tr...](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [511i Max AllergenBlock Replacement Filter Compatible with Blue Pure 511i Max Air Pu...](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)

## Add-ons

- [311i+ Max Replacement Filter for Blueair Blue Pure 311i+ Max Air Purifiers \| 2-in-1 311i+ Max Filter with Activated Carbon Ai](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)
- [211i Max Replacement Filter for BLUEAIR Blue Pure 211i Max Air Purifier \| Ture HEPA & Activated Carbon Replacement Filter, 1](https://best-deals.pro/visit/mbetter-511i-max-replacement-filters-2-pack)

## Images

![Mbetter 511i Max Replacement Filters, 2-Pack — 1](https://best-deals.pro/i/sYLur20y3yD3pZTDQSmLu_928inLCZSAOGEPffAzGBbs12N-XmtWAjUN59BpbiUZJzV1qADK31aUOMzstHquJ6MOpwgW3HoEUGzp4NKYeywqkU_P8JFAjj5w.jpg)

![Mbetter 511i Max Replacement Filters, 2-Pack — 2](https://best-deals.pro/i/36eKAAdxblL12-3-ykdTbHJm351TAgpyWjGqYutp4tBSihVR3ru_Pzd3zlVdT1vJizqqO1HybWkeqmKaLt5X-P2vGLIv2iDP7i10UVl8QVpdXQd2I1chzh0m.jpg)

![Mbetter 511i Max Replacement Filters, 2-Pack — 3](https://best-deals.pro/i/85bup0GbRElG_RVlwMhoVXuc8VA6RL8TnQ6ioZyMjPgP8fyqRPdBkuGWFQmne1KKaua7JW5GY5dciCk9QBRP_LiNZmVvU2emORQhNQ1jaWlcJkTSH1BpTD3P.jpg)

![Mbetter 511i Max Replacement Filters, 2-Pack — 4](https://best-deals.pro/i/X44LV-XsNgKL9HUcD_2Dw9BjsW3ugY062qgCufKADZyMK99WjowA2WI3QWg1lYncQgJGNIMFY7eFlT0KH6Uu60XhSPJeFOLPiWn8RaZ5qnUfzcrBdPzq5mry.jpg)

![Mbetter 511i Max Replacement Filters, 2-Pack — 5](https://best-deals.pro/i/xpg-hJaOLqIFh0IW9bGA5Hox2A06Mexms_Cnw7NdEMZpzcWkEG7esK1VfWwQ1DzO2ZFKMORtaldtiN54WFbCShgAPV_2Ly1RliKm37l2MueK8fJVJfiV1yzM.jpg)