---
product_id: 753388749
title: "Dust Mite- and Allergen-Proof Boxspring Encasing (Cover); “Barrier II” (LongTwin; 9\" deep)"
brand: "mission: allergy"
price: "€ 186.51"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mission: Allergy"
url: https://www.desertcart.fr/products/753388749-dust-mite-and-allergen-proof-boxspring-encasing-cover-barrier-ii
store_origin: FR
region: France
---

# Premium bound seams & zipper flap Breathable yet water-repellent fabric 100% allergen & bedbug barrier Dust Mite- and Allergen-Proof Boxspring Encasing (Cover); “Barrier II” (LongTwin; 9" deep)

**Brand:** mission: allergy
**Price:** € 186.51
**Availability:** ✅ In Stock

## Summary

> 🛏️ Sleep Clean, Sleep Confident: The Ultimate Allergy Shield for Your Boxspring

## Quick Answers

- **What is this?** Dust Mite- and Allergen-Proof Boxspring Encasing (Cover); “Barrier II” (LongTwin; 9" deep) by mission: allergy
- **How much does it cost?** € 186.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/753388749-dust-mite-and-allergen-proof-boxspring-encasing-cover-barrier-ii)

## Best For

- mission: allergy enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Experts:** Recommended by leading allergists and allergy departments for superior allergy and asthma relief.
- • **Comfort Meets Protection:** Soft, breathable microfiber fabric keeps you cool without sacrificing allergen impermeability.
- • **Complete Allergen Defense:** Blocks 100% of dust mites, animal dander, and bedbugs with medical-grade, third-party tested fabric.
- • **Engineered for Durability:** Bound seams and an interior zipper flap ensure long-lasting protection and easy installation.
- • **Made in the USA with Warranty:** Crafted domestically with a 10-year warranty for peace of mind and lasting quality.

## Overview

The MISSION: ALLERGY Barrier II Boxspring Encasement is a medical-grade, allergen-proof cover designed by a board-certified allergist. It blocks 100% of dust mites, animal dander, and bedbugs with a tightly woven 100% microfiber polyester fabric that is breathable and water-repellent. Featuring premium bound seams and an interior zipper flap, it offers durable, comfortable protection recommended by allergy specialists and backed by a 10-year warranty. Made in the USA, it’s the go-to solution for allergy sufferers seeking both comfort and uncompromising defense.

## Description

MISSION: ALLERGY Barrier II Fabric is the most cost-effective allergen-barrier: allergen-impermeable, soft, and lightweight. It is extremely tightly woven, with a mean pore size of 6 microns to block all allergens, yet is breathable (air-permeable), making it very comfortable to sleep on. It is not hot and sweaty, as are encasing fabrics made with membranes; does not allow any allergen escape, as do many cotton encasings; and does not accumulate surface allergen, as do encasings made with terry cloth or non-woven fabric. MISSION: ALLERGY Allergen-Proof Boxspring Encasings are manufactured with the highest quality sewing construction. The differences are immediately apparent. All seams and edges are bound with seam binding for durability. Placement of the encasing on the boxspring is easier, thanks to super-long zippers that are half the circumference of the entire boxspring! Zippers are of the highest quality, with an interior zipper flap to prevent allergen escape through the zipper webbing (no tape needed). These medical-grade encasings are suitable for adults or children with allergic asthma, allergic rhinitis, or allergic eczema (or simply for good hygiene). They are the ultimate allergen-proof boxspring encasing for comfort, protection, and durability. King and California King sizes are sets of two split sizes. 100% Woven Polyester Microfiber. Ten-year warranty. “… protect both your pillows and your mattress with special mite-proof covers, experts say. Be sure you get covers from a reputable company, like Mission Allergy…” THE NEW YORK TIMES "Much Ado About Dust Mites" 3/4/11 “Say sayonara to dust mites. The fix is to use hypoallergenic encasements on my mattress and pillows. Dr. Fost recommends Mission: Allergy.” HEALTH MAGAZINE "How healthy is your bedroom?" 3/9/11

Review: Quality protector is worth the cost - This mattress protector is soft and thick; not crinkly and susceptible to tearing easily like so many others. Very happy with this purchase.
Review: Great for thinner IKEA mattress - I purchased the 4 inch bunkie board cover for my IKEA morgedal twin mattress to help manage allergies. The mattress is 7 inches thick (thought it was closer to 4 or 5). It was a good fit, not perfect and not too loose since this wasn't made for a mattress. Regardless, I'm very pleased with this purchase and would recommend for thinner mattresses.

## Features

- MISSION: ALLERGY brand encasings are specifically recommended by leading Allergy Specialists and university Allergy Departments. Designed by a Board-Certified Allergist.
- Medical Grade. Blocks 100% of dust mite and animal dander allergens; third-party tested by Indoor Biotechnologies, Inc. Certified bedbug-proof.
- Soft, tightly woven, breathable 100% microfiber polyester is air- and water vapor-permeable for comfort, yet water repellant.
- Highest quality sewing construction: bound seams, interior zipper flap, and extra-long zipper for easy placement. Ten-year warranty. MADE IN USA.
- See desertcart link to Mission:Allergy, detailed seller information, for FAQs and recommendations by leading Allergy Specialists and periodicals

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0096EA06U |
| Best Sellers Rank | #1,515,377 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #206 in Mattress Encasements |
| Customer Reviews | 4.5 4.5 out of 5 stars (145) |
| Date First Available  | September 12, 2012 |
| Is Discontinued By Manufacturer  | No |
| Manufacturer  | Mission: Allergy, Inc. |

## Product Details

- **Brand:** Mission: Allergy
- **Closure Type:** Zipper
- **Color:** White
- **Size:** Long-Twin (39" x 80" x 9")
- **Special Feature:** Allergen-Proof

## Images

![Dust Mite- and Allergen-Proof Boxspring Encasing (Cover); “Barrier II” (LongTwin; 9" deep) - Image 1](https://m.media-amazon.com/images/I/21at9fw-0EL.jpg)
![Dust Mite- and Allergen-Proof Boxspring Encasing (Cover); “Barrier II” (LongTwin; 9" deep) - Image 2](https://m.media-amazon.com/images/I/41qSFhbEgAL.jpg)
![Dust Mite- and Allergen-Proof Boxspring Encasing (Cover); “Barrier II” (LongTwin; 9" deep) - Image 3](https://m.media-amazon.com/images/I/41undkdItcL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality protector is worth the cost
*by B***E on March 30, 2025*

This mattress protector is soft and thick; not crinkly and susceptible to tearing easily like so many others. Very happy with this purchase.

### ⭐⭐⭐⭐⭐ Great for thinner IKEA mattress
*by D***R on April 11, 2025*

I purchased the 4 inch bunkie board cover for my IKEA morgedal twin mattress to help manage allergies. The mattress is 7 inches thick (thought it was closer to 4 or 5). It was a good fit, not perfect and not too loose since this wasn't made for a mattress. Regardless, I'm very pleased with this purchase and would recommend for thinner mattresses.

### ⭐⭐⭐⭐ works well
*by W***Y on September 18, 2013*

The description states: "imperceptible beneath the sheets" That is a stretch. Mine is covred with 2 flanel sheets. I can still tell the matress cover is there. Makes a slight plastic noise when moving around on the bed. But the cover is well made and I assume is working as otherwise described.

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**Shop now:** [https://www.desertcart.fr/products/753388749-dust-mite-and-allergen-proof-boxspring-encasing-cover-barrier-ii](https://www.desertcart.fr/products/753388749-dust-mite-and-allergen-proof-boxspring-encasing-cover-barrier-ii)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-24*