How to get rid of dust mites really means how to make your bed and bedroom a place they can't thrive: dry, encased, and regularly washed hot. You won't ever hit literal zero — they're microscopic and everywhere — but a few cheap habits dramatically cut how many live in your bed. Here's the practical plan.
Zip-up, tightly-woven covers for your mattress and pillows. They physically lock mites and their waste away from you — the single most effective step.
Find it on Amazon.ca →Mites can't survive in dry air. A cheap hygrometer tells you your humidity; a dehumidifier (or AC) keeps it under ~50%.
Find it on Amazon.ca →A sealed HEPA filter traps the fine particles a normal vacuum just blows back into the air.
Find it on Amazon.ca →Washing bedding hot (about 55°C / 130°F) is what actually kills mites, not just relocates them.
Find it on Amazon.ca →Zip-up allergen-proof encasements are the highest-impact move — they trap the mites already in your mattress and stop new ones from settling in. Do the pillows too.
Sheets, pillowcases, and protectors washed at about 55°C (130°F) kill mites rather than just moving them. A weekly hot wash is the core habit.
Dust mites can't drink — they absorb moisture from the air, and they die in dry conditions. Run a dehumidifier or AC and check with a hygrometer; under 50% relative humidity is the target.
Vacuum the mattress surface, carpets, and soft furnishings with a sealed HEPA vacuum so you remove the particles instead of recirculating them.
Mites live in soft stuff: carpets, heavy curtains, and piles of cushions and plush toys. Declutter what you can, and wash or freeze stuffed animals (a night in the freezer kills mites) before washing.
Vacuum and deodorise the mattress itself every couple of months — see the full how to clean a mattress routine.
If your mattress is old and you've never been able to keep it clean, a fresh start helps — see the best mattresses in Canada, and pair it with an encasement from day one.
More care guides: clean a pillow · clean a mattress topper · remove sweat stains.
Practical cleaning & prevention tips — not medical advice. Allergy or asthma symptoms? See a doctor.
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