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Waterproof Dust Mite Cushion Cover & Throw Pillow Protector | 50×50cm | AU
Waterproof Dust Mite Cushion Cover & Throw Pillow Protector | 50×50cm | AU
This waterproof dust mite cushion protector zips your whole cushion insert inside a soft, quiet barrier, hidden under your favourite cushion cover — so the build-up stays sealed in, and spills stay out.
- Seals the whole cushion insert inside — zipped closed
- Waterproof microporous TPU membrane, third-party pore-size tested
- Soft, quiet jersey — no plastic crinkle
- Machine washable up to 60°C
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Waterproof dust mite cushion protector
Allergy specialists recommend dust mite covers.
It’s on ASCIA’s list of practical steps for reducing dust mite allergen at home — and it’s the one that keeps working while you sleep.
ASCIA recommends covering mattresses, pillows and quilts with dust mite resistant covers.
ASCIA allergen minimisation guidance — the peak allergy body for Australia and New Zealand.
Encasings produced a significant long-term reduction in dust mite allergen over 12 months.
Randomised, double-blind controlled trial. Halken et al., 2003, Journal of Allergy and Clinical Immunology.
ASCIA, the peak body of allergy specialists in Australia, recommends dust mite covers as part of minimising exposure. Neither ASCIA nor the researchers cited endorse a particular brand.
Built as a barrier
Waterproof. Breathable. Quiet.
A microporous TPU membrane sits behind a soft knitted jersey. It stops liquids and fine particles, lets water vapour through, and feels like fabric — not plastic.
0.16 µm
Our tightest barrier.
Every pore measured under 1 micron in third-party testing — the finest barrier we sell.
360°
Zipped all the way closed.
The whole insert sealed inside the barrier, hidden under your decorative cover.
Dry
Waterproof.
Spills, sticky fingers and pet accidents stay on the surface and out of the insert.
0
Raw seam edges. Sealed at the seams, not just the zip.
Seams are where cheaper covers leak. Ours are folded and bound closed, so the barrier carries right to the edges.
Quiet
No crinkle.
Soft knitted jersey on the outside, so it feels and sounds like fabric — and it breathes, unlike vinyl or PVC.
What the research shows
Your cushion cover gets washed. The insert inside never does.
You wash the cover.
Not the cushion.
Sofa and scatter cushions collect skin cells for years, and the inserts almost never go through the wash.
The easier answer: zip it on once.
Dust mite allergen stays sealed in. Spills stay out.
Why a standard waterproof protector isn’t enough
Decorative cushion cover vs dust mite cushion protector.
A standard waterproof protector is made for spills. A dust mite protector is made to be a barrier on every side — and the difference is in the details.
| Decorative cushion cover | This dust mite protector | |
|---|---|---|
| Fabric | Decorative fabric, made to look good | Soft knitted jersey with a microporous TPU membrane |
| Coverage | Zip or envelope opening, made to decorate | Zipped fully closed |
| Feel | Vinyl and PVC types can crinkle and feel hot | Quiet, and lets water vapour through |
| Pore size | Rarely tested or published | Third-party tested: most common 0.16 µm, every pore under 1 µm |
| Made for | Spills | Spills and a barrier against dust mite allergen build-up |
Tested, not guessed.
How small are the gaps in the membrane?
Most of the tiny gaps in the membrane are about 0.16 microns wide, and every gap measured is under 1 micron. A micron is one-thousandth of a millimetre — far too small to see.
In plain terms: the droppings that carry dust mite allergen are more than 60 times bigger than most of the gaps in this membrane. Even the biggest gap measured is 13 times too small for them.
Is it right for you?
Who this waterproof dust mite cushion protector is for.
Made for you if…
- You’ve already covered the bed and want to protect the sofa too.
- Kids, pets or spills meet your cushions regularly.
- You want the tightest barrier we sell — every pore under 1 micron.
Choose another option if…
- You prefer natural fibre — choose our 100% cotton cushion protector.
Less work than what you’re doing now
Fit it once. Then it just works.
Waterproof or cotton dust mite protector?
Both zip fully closed and are third-party pore-size tested.
Waterproof
This one · our tightest barrier
Tightly woven cotton
Most breathable
Everything you get
More than a cover.
- ✓Waterproof dust mite cushion protectorZip with Velcro lock flap, enclosed binding seams, every pore under 1 micron
- ✓Third-party pore-size test reportAsk us for a copy any time
- ✓12-month warrantyAgainst manufacturing defects, on top of your Australian Consumer Law rights
- ✓Free shipping over $150Australia-wide, dispatched in 1–3 business days
- ✓Real answers from a dust mite specialistNot sure on size or fabric? Email us before you buy
Bundle and save
Covered the cushions?
Now protect the whole bed.
ASCIA recommends covering the mattress, pillows and quilt. The waterproof whole-bed bundle covers all three, plus a Mattress Mate slip-on for easy weekly washing — and saves 10% on buying them separately.
Shop the whole-bed bundleTonight
Three steps. Then forget about it.
- 1Zip it on.Slide the cushion insert in, zip it closed and press the Velcro flap over the zip.
- 2Make the bed.Your decorative cushion cover goes straight over the top.
- 3Sleep.Wash it every couple of months, or straight away after a spill. That’s the whole routine.
Step one of a proven plan
Start with the bed. Then build on it.
A 2018 review by allergy researchers at the University of Virginia describes combining several measures as more likely to succeed than any single step (Wilson & Platts-Mills). Covers are a sensible place to start. Here is what the research says works alongside them.
Encase the bed and hot-wash weekly.
Covers on the mattress, pillows and quilt. Research found water at 55°C or above was effective at reducing dust mite populations in bedding (McDonald & Tovey, 1992).
Shop bundles ›Keep humidity below 50%.
Homes kept below 51% humidity for 17 months had 98% fewer live dust mites (Arlian et al., 2001).
Dehumidifiers ›Vacuum with a HEPA filter.
In a real-home study, intensive HEPA vacuuming cut dust mite allergen in carpets by about 81% (Yu et al., 2009).
HEPA vacuums ›Clean the air.
HEPA air cleaners are on leading researchers’ priority list for dust mite reduction (Wilson & Platts-Mills, 2018).
Air purifiers ›Findings are from the cited studies and describe the methods tested, not specific products. See the full step-by-step guide ›
Waterproof dust mite cushion protector questions.
Do dust mite covers work?
The evidence is strong. ASCIA recommends covering mattresses, pillows and quilts with dust mite resistant covers, and a 12-month randomised controlled trial found mattress and pillow encasings produced a significant long-term reduction in dust mite allergen (Halken et al., 2003). They work best fully zipped, alongside weekly hot washing of sheets.
Can I still use my decorative cushion covers?
Yes. The protector goes on the insert first and your decorative cover goes straight over the top, so nobody sees it.
Do dust mite covers work on sofa cushions?
The research on dust mite covers is about bedding, where most of the build-up is. A zipped barrier works the same way on a cushion insert: it keeps what’s inside sealed in. For the biggest difference, start with the bed.
Will it change how my cushion looks or feels?
No. It sits under your decorative cover, and the soft knitted jersey has no plastic crinkle, so the cushion keeps its shape and feel.
Does it feel or sound like plastic?
No. The membrane sits behind a soft knitted jersey, so the surface feels like fabric and doesn’t crinkle.
Is it good for spills, kids and pets?
Yes. The TPU membrane stops liquid reaching the insert, and the protector is machine washable, no hotter than 60°C.
Which materials are best for dust mite covers?
A fabric whose gaps are smaller than the 10–40 micron particles that carry dust mite allergen, made into a fully zipped cover. Our two options are tightly woven 100% cotton (most breathable) and this knitted jersey with a TPU membrane (waterproof, every pore under 1 micron).
How often should I wash it? Should I wash it before use?
Yes, wash it before first use. ASCIA recommends washing dust mite covers at least every two months; your decorative cushion cover on top gets washed weekly as usual. Wash straight away after a spill. Warm or gentle cycle, no hotter than 60°C. Skip bleach, fabric softener, ironing and hot dryers, which damage the membrane.
How long does it last, and when should I replace it?
Typically 4–5 years. Body oils and essential oils slowly break down the TPU membrane, so warm (not hot) washes help it last. Replace it sooner if the fabric tears or the zip no longer closes fully — a gap means the barrier is broken.
Tech specs
| Outer fabric | 90gsm polyester knitted jersey |
|---|---|
| Lining | 0.2mm microporous TPU waterproof membrane |
| Most common pore size | About 0.16 microns (third-party capillary flow porometry) |
| Mean flow (average) pore size | About 0.54 microns |
| Largest detected pore | About 0.75 microns |
| Size | Cushion insert, 50 × 50cm |
| Closure | Zip with a Velcro lock flap, enclosed binding seams |
| Care | Warm or gentle wash, no hotter than 60°C. Low or medium dry. No bleach, softener, ironing or dry cleaning. |
| Warranty | 12-month voluntary warranty against manufacturing defects, in addition to your Australian Consumer Law rights. Refund Policy |
| Shipping | Australia only. Free over $150. |
Small print
Not a medical product. We don’t claim this product cures, treats, prevents or relieves allergies, asthma or any medical condition. We describe the fabric’s measured physical properties as a barrier against fine particles and liquids. If you have a diagnosed condition, talk to your GP or allergist.
Barrier performance depends on the protector being fully zipped closed.
Testing. Pore-size figures are from a third-party laboratory test report provided by our manufacturer; a copy is available on request. They describe the fabric, not a guarantee of allergen reduction.
Research (ASCIA; Halken et al., 2003; Visitsunthorn et al., 2010; Wilson & Platts-Mills, 2018; McDonald & Tovey, 1992; Arlian et al., 2001; Yu et al., 2009) is cited as findings of those sources about covers and methods in general, not claims about this product.
Browse every dust mite cover we stock, or start with dust mite pillow protectors.