---
product_id: 315136128
title: "Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal"
brand: "alen"
price: "55.62 DT"
currency: TND
in_stock: false
url: https://www.desertcart.tn/products/315136128-alen-breathesmart-45i-flex-h13-true-hepa-replacement-filter-medical
store_origin: TN
region: Tunisia
---

# 9-12 months lifespan 700-800 sq ft coverage 99.9% particle capture Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal

**Brand:** alen
**Price:** 55.62 DT
**Availability:** ❌ Out of Stock

## Summary

> 🌬️ Breathe smarter, live better — don’t let allergens crash your vibe!

## Quick Answers

- **What is this?** Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal by alen
- **How much does it cost?** 55.62 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/315136128-alen-breathesmart-45i-flex-h13-true-hepa-replacement-filter-medical)

## Best For

- alen enthusiasts

## Why This Product

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

## Key Features

- • **Leak-Proof Foam Seal:** Maximizes airflow and traps stubborn allergens with zero air bypass
- • **Broad 800 SqFt Coverage:** Purifies large spaces efficiently, perfect for your home or office environment
- • **Easy Maintenance Design:** Vacuum-cleanable pre-filter extends filter life and saves you time and money
- • **Long-Lasting Filter Life:** Enjoy up to 12 months of hassle-free air purification without frequent replacements
- • **Medical-Grade H13 True HEPA:** Captures 99.9% of airborne particles down to 0.1 microns for pristine air quality

## Overview

The Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter is a medical-grade air purifier filter designed to capture 99.9% of airborne particles as small as 0.1 microns. Covering up to 800 square feet, it ensures clean air in large spaces with a durable 9-12 month lifespan. Featuring a vacuum-cleanable pre-filter and a leak-proof foam seal, it offers efficient, low-maintenance performance to keep your indoor environment fresh and healthy.

## Description

Buy Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06W58W18B |
| Best Sellers Rank | #357,147 in Kitchen ( See Top 100 in Kitchen ) #1,877 in Air Purifier Filters |
| Brand | Alen |
| Brand Name | Alen |
| Compatible Devices | Air Purifier |
| Compatible devices | Air Purifier |
| Customer Reviews | 4.8 out of 5 stars 1,001 Reviews |
| Global Trade Identification Number | 00810587023091 |
| Included Components | One Filter |
| Item Type Name | Alen True HEPA Replacement Air Filter for BreatheSmart 45i or Flex Removes Dust, Mold, Pet Odors |
| Item Weight | 1 Pounds |
| Item weight | 1 Pounds |
| MERV Rating | 17 |
| MERV rating | 17 |
| Manufacturer | Alen |
| Manufacturer Part Number | B4-Pure |
| Material | Allergies/Dust |
| Material Type | Allergies/Dust |
| Model Number | B4-Pure |
| Number of Items | 1 |
| Product Grade | high |
| UPC | 810587023091 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Alen
- **Material:** Allergies/Dust
- **MERV rating:** 17
- **Compatible devices:** Air Purifier
- **Item weight:** 1 Pounds

## Images

![Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal - Image 1](https://m.media-amazon.com/images/I/81RlIW8lntS.jpg)
![Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal - Image 2](https://m.media-amazon.com/images/I/71ODeVxhbYL.jpg)
![Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal - Image 3](https://m.media-amazon.com/images/I/71yIfACmoiL.jpg)
![Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal - Image 4](https://m.media-amazon.com/images/I/81OADg1PcpL.jpg)
![Alen BreatheSmart 45i/FLEX H13 True HEPA Replacement Filter - Medical-Grade Air Filter- Captures Allergens, Dust, Mold, and Germs, 700-800 SqFt Coverage - 99.9% Airborne Particle Removal - Image 5](https://m.media-amazon.com/images/I/61vJ5-ddq6L.jpg)

## Questions & Answers

**Q: What are the dimensions of this filter?**
A: The FL40 Silver-Carbon filter is 11 inches by 14 inches

**Q: Why would my unit indicate a need to change filter after less than a month of use?**
A: Each time you put in a new filter you'll need to press and hold the filter button on the control panel for 10 seconds to reset the red iight back to green. So, you my just need to reset that filter light.

**Q: Does the replacement filter come with a new pre-filter?**
A: Te filter has a thin layer on top of the main filter that you can remove and vacuum other for longer use I have two Shizu pups and
I am amazed at the things the filter catches that you can’t see with naked eyes I have one in my den and another in my bedroom We
Love ours

**Q: My replacement filter arrived without the black pre-filter. Am I supposed to keep and clean the original pre-filter and re-apply it to the new filter?**
A: Not sure what you are "supposed" to do, but since I don't throw away much I would have kept the pre-filter. Now I just thoroughly rinse my pre-filters and vacuum the filter until it is just too dirty to continue with it.

## Frequently Bought Together

- Alen Air Filter B4-Pure Replacement H13 True HEPA Filter for BreatheSmart 45i & Flex Air Purifier - Captures Allergens, Dust, & Mold (1 Filter)
- Alen Air Filter BF35-Fresh Replacement HEPA Filter for BreatheSmart Classic Air Purifier - Captures Allergens, Dust, & Mold + Odors & Smoke (1 Filter)
- Alen Air Filter B7-Pure Replacement H13 True HEPA FIlter for BreatheSmart 75i Air Purifier - Captures Allergens, Dust, & Mold (1 Filter)

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**Shop now:** [https://www.desertcart.tn/products/315136128-alen-breathesmart-45i-flex-h13-true-hepa-replacement-filter-medical](https://www.desertcart.tn/products/315136128-alen-breathesmart-45i-flex-h13-true-hepa-replacement-filter-medical)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-30*