Cleaning for Allergies and Asthma
For Ontario households with allergy or asthma sufferers, standard cleaning practices often aren't enough — and some conventional cleaning products actively worsen symptoms. The goal is to reduce the specific triggers most relevant to Ontario's indoor environment: dust mites, pet dander, mould, and seasonal pollen tracked indoors.
The Most Important Changes
Use a HEPA-filter vacuum: A standard vacuum recirculates fine particles including dust mite allergens and pet dander back into the air. A HEPA vacuum captures particles down to 0.3 microns, significantly reducing airborne allergen levels after vacuuming. Vacuum more frequently — twice weekly in high-allergy households, rather than once.
Damp-dust rather than dry-dust: Dry dusting lifts particles into the air where they remain for hours. A damp microfibre cloth traps particles rather than redistributing them.
Wash bedding weekly in hot water: Bedding is the primary dust mite habitat. Hot water (60°C) kills dust mites. Mattress covers designed to be dust-mite-proof reduce exposure significantly.
Address bathroom mould immediately: Mould spores are a significant asthma trigger. See the bathroom mould removal guide — any visible mould should be eliminated, and the root cause (inadequate ventilation) addressed.
Product Choices for Sensitive Households
- Avoid aerosol cleaning sprays and air fresheners — these release VOCs and propellants that are direct irritants
- Use fragrance-free cleaning products — synthetic fragrance compounds are common asthma triggers
- Avoid ammonia and bleach in spray form — fumes are direct respiratory irritants. If needed, use in well-ventilated spaces
- Baking soda, vinegar, and unscented dish soap handle most cleaning tasks without these concerns
Ontario Seasonal Considerations
Ontario's tree pollen season (April–May) and grass pollen season (June) bring significant outdoor allergen loads. During high-pollen periods, keep windows closed and rely on HVAC filtration. Change HVAC filters to high-efficiency filters (MERV 11 or higher) if not already done.