Cleaning for Better Indoor Air Quality
Indoor air quality is a significant health concern in Ontario homes, particularly during the winter months when homes are closed up and air circulation is minimal. Cleaning is one of the most effective tools for improving indoor air quality — but only if it's done correctly. Some cleaning approaches actually worsen air quality temporarily.
The Primary Indoor Air Pollutants in Ontario Homes
- Dust and dust mites: Fine particulate matter that becomes airborne during cleaning if not captured properly
- Pet dander: Protein particles from pets that trigger allergic responses — highly airborne, small enough to remain suspended for hours
- Mould spores: From bathroom, basement, or anywhere with persistent moisture
- VOCs from cleaning products: Many conventional cleaners off-gas volatile organic compounds — using strongly scented or chemical-heavy cleaners indoors in winter (when windows are closed) concentrates these
- HVAC duct dust: Forced-air heating redistributes dust from ductwork throughout the home
Cleaning Practices That Help
Vacuum with HEPA filtration: Standard vacuum exhaust redistributes fine particles back into the air — a vacuum with a HEPA filter captures them. For Ontario homes with pets or allergy sufferers, this is a meaningful upgrade.
HVAC filter maintenance: Replace the furnace filter every 3 months (more often with pets). A clogged filter reduces airflow and lets more particulate pass.
Damp dusting: A slightly damp microfibre cloth captures dust rather than dispersing it.
Ventilate when cleaning: In summer, open windows during and after cleaning. In winter, at minimum turn on the HVAC fan during cleaning to run air through the filter.
Choose low-VOC products: Fragrance-free, plant-based cleaners produce far fewer airborne irritants than conventional products with synthetic fragrance.