Start with the AQHI
The Air Quality Health Index (AQHI) translates outdoor air pollution into a health-risk scale:
- 1–3: low risk
- 4–6: moderate risk
- 7–10: high risk
- 10+: very high risk
Lower numbers indicate lower health risk. Alberta’s monitoring system incorporates pollutants including fine particulate matter (PM2.5), nitrogen dioxide, and ozone. During wildfire events, PM2.5—the very small particles that can be inhaled into the lungs—is a central concern. Government of Alberta
For Calgary conditions, use the Alberta AQHI map or the Environment Canada Calgary report. The free WeatherCAN app can also provide AQHI information and customized air-quality notifications.
Do not copy a live AQHI number into an article and assume it will remain useful. Environment Canada notes that current readings arrive in real time and may not yet have undergone detailed quality control. Link readers to the live report instead. Environment Canada
Make one room your cleaner-air space
When smoke becomes a problem, start with the room where your household can spend the most time.
Close exterior windows and doors. Place a portable air cleaner with a HEPA filter in the room and follow its sizing, placement, and maintenance instructions. Avoid adding indoor pollution through smoking, vaping, candles, wood-burning appliances, or unnecessary vacuuming while outdoor smoke is heavy. MyHealth Alberta
This does not make the room perfectly smoke-free. It is a practical way to reduce exposure.
Check what your HVAC system can support
If your home uses forced-air heating or cooling, Alberta’s health guidance recommends using the highest-efficiency filter the system can safely accommodate. A MERV 13 or higher-rated filter may help reduce smoke particles, but not every system can handle the same filter resistance.
Check the filter frequently during smoky conditions and replace it when necessary. If you are unsure what your equipment can support, confirm the requirement with the manufacturer or a qualified HVAC professional rather than choosing by rating alone. MyHealth Alberta
Ventilation, filtration, and air conditioning perform different jobs. Settings that help on an ordinary day may need to be reconsidered when outdoor air is smoky. Avoid making equipment changes that contradict its operating instructions.
Pay extra attention to higher-risk family members
Wildfire smoke can affect anyone, but Alberta identifies several groups at higher risk, including children, adults 65 and older, pregnant people, people with heart or lung conditions, and people doing strenuous work or exercise outdoors. MyHealth Alberta
Move strenuous activities indoors or reschedule them when conditions are poor. Pay attention to symptoms rather than relying only on the number displayed by an app.
Use a well-fitted respirator when you must go outside
A properly fitted N95, KN95, or P100 respirator can help filter small smoke particles such as PM2.5. It does not protect against every gas found in wildfire smoke, and fit matters. Follow the manufacturer’s instructions and perform a seal check. MyHealth Alberta
In a vehicle, keep the windows closed and use recirculation while travelling through smoky areas. Switch back to outside air after reaching cleaner conditions.
Know where to ask for help
For non-emergency health concerns, Alberta’s Health Link service connects callers with health professionals at no charge, 24 hours a day. Dial 811. Primary Care Alberta
Call 911 for a life-threatening emergency.
Start with the concern, not a product
A useful indoor-air-quality assessment should answer four questions:
1. Is outdoor smoke entering the home? 2. Is the existing filter properly fitted and compatible with the system? 3. Would portable or whole-home filtration address the affected rooms? 4. Are ventilation settings appropriate for the equipment and current outdoor conditions?
Alberta Indoor Comfort can assess filtration, ventilation, cooling, and other indoor-air-quality layers in the context of the home. The goal should be a practical plan—not a claim that one device solves every air-quality concern.
Editorial review date: July 23, 2026. This article summarizes public guidance and is not medical advice. Live conditions, alerts, and equipment requirements should be checked at the time they are needed.
{“@context”: “https://schema.org”, “@type”: “BlogPosting”, “headline”: “Calgary Air Quality: How to Read the AQHI and Protect Your Home During Wildfire Smoke”, “description”: “Learn how to check Calgary’s AQHI, reduce smoke indoors, and protect your family during wildfire season. Practical steps from Alberta Indoor Comfort.”, “keywords”: “Calgary air quality AQHI, wildfire smoke Calgary, indoor air quality Calgary, HEPA filter Calgary, MERV 13 filter”, “author”: {“@type”: “Organization”, “name”: “Alberta Indoor Comfort”}, “publisher”: {“@type”: “Organization”, “name”: “Alberta Indoor Comfort”, “telephone”: “+1-587-792-1476”, “url”: “https://albertaindoorcomfort.com”}, “areaServed”: {“@type”: “City”, “name”: “Calgary”}}
