---
product_id: 552372961
title: "45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter"
brand: "wilerda"
price: "1112 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/552372961-45i-replacement-filter-compatible-with-a-len-breathesm-art-flex
store_origin: DK
region: Denmark
---

# 2 Pack + 4 Pre-Filters Change Every 9-12 Months 99.99% Filtration 45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter

**Brand:** wilerda
**Price:** 1112 kr
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe Fresh, Live Fresh!

## Quick Answers

- **What is this?** 45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter by wilerda
- **How much does it cost?** 1112 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/552372961-45i-replacement-filter-compatible-with-a-len-breathesm-art-flex)

## Best For

- wilerda enthusiasts

## Why This Product

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

## Key Features

- • **Breathe Easy:** Experience 99.99% particle removal with H13 True HEPA technology.
- • **Peak Performance:** Maintain your air purifier's efficiency with timely replacements.
- • **Cost-Effective Solution:** Includes 2 HEPA filters and 4 pre-filters for extended use.
- • **Compatibility Guaranteed:** Designed exclusively for Alen BreatheSmart Flex & 45i models.
- • **Customer-Centric Support:** Reach out anytime; we respond within 24 hours!

## Overview

The True HEPA 45i Replacement Filter is a high-efficiency air filter designed specifically for Alen BreatheSmart Flex & 45i air purifiers. This package includes two H13 True HEPA filters and four pre-filters, ensuring optimal air quality by capturing 99.99% of particles as small as 0.1 microns. Regular replacement every 9-12 months is recommended for peak performance, and customer support is readily available for any inquiries.

## Description

45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter

## Features

- 【Compatibility】: The filter is Only compatible with Alen BreatheSmart Flex & 45i Air Purifiers ONLY. Please check your model number before placing the order.
- 【High Effective Filtration】:3-Stage H13 True HEPA clean up 99.99% of particles as small as 0.1 microns. household dust, pet dander, and so on.
- 【Cost-effective Packages】: includes 2 pack3-Stage H13 True HEPA filtration (Pre-Filter+H13 Grade True HEPA Filter+Activated Carbon Filter) also 4 pack extra replacement pre-filter
- 【Highly Recommended】: To your machine performance peak, you need to change the air filter once every 9-12 months, and Pre-filter every 3 months.
- 【We Treasure Our Customers】: Once you have any questions about our product, please feel free to contact us, and we will solve them for you within 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | WILERDA |
| Model Info | 2P+4P-45 |
| Item Weight | 3.65 pounds |
| Product Dimensions | 14.5 x 10.98 x 2 inches |
| Item model number | 2P+4P-45 |
| Part Number | 2P+4P-45 |
| Compatible Device | Alen BreatheSmart Flex &45 i air purifier |
| Material Type | 3 in 1 HEPA Filter |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter - Image 1](https://m.media-amazon.com/images/I/81hDBEdn8bL.jpg)
![45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter - Image 2](https://m.media-amazon.com/images/I/71SlEOOp4KL.jpg)
![45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter - Image 3](https://m.media-amazon.com/images/I/81DlWz2jOqL.jpg)
![45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter - Image 4](https://m.media-amazon.com/images/I/71wNfnvA6SL.jpg)
![45i Replacement Filter Compatible with A-len BreatheSm-art Flex Bh400 & 45i Pure Air Purifier, Compared # B4-Fresh/FL40-Silver-Carbon, 2 Pack 3-in-1 HEPA Filter + 4 Pcs Activated Carbon Pre Filter - Image 5](https://m.media-amazon.com/images/I/71Jv5DTFxHL.jpg)

---

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**Shop now:** [https://www.desertcart.dk/products/552372961-45i-replacement-filter-compatible-with-a-len-breathesm-art-flex](https://www.desertcart.dk/products/552372961-45i-replacement-filter-compatible-with-a-len-breathesm-art-flex)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-07*