Windsor, ON Live Wildfire Smoke Map
Get Alerts For Wildfires In Your Area
The moment a wildfire starts near you, you'll get an instant alert and simple tips to reduce your smoke exposure.
What's In The Smoke
30xSmaller than a human hair
Fine enough to reach deep into the lungs. A MERV 13 is built to capture it.
How Far It Travels
It Doesn't Stay Local
Smoke rides the wind far downwind — you can get smoky air with no fire nearby.
What To Do During A Smoke Event
Simple steps to reduce indoor exposure.
- Stay In, Close UpShut windows and doors to keep smoke out.
- Set Fan To "On"Keeps air cycling through your filter, not just when heating or cooling.
- Recirculate AirSwitch off fresh-air intake so you're not pulling smoke in.
- Run A MERV 13Built to capture the fine PM2.5 in smoke.
- Add A PurifierExtra filtration for the room you use most.
- Wear an N95 if OutsideFits snug to block fine particles — a cloth mask won't.
The Best Air Filter For Wildfire Smoke
During smoke events, the EPA recommends upgrading to a MERV 13 filter — or the highest-rated filter your system can handle — to help reduce the fine particles smoke brings indoors. MERV 13 is the level most home HVAC systems can run while still capturing PM2.5, the fine particulate that makes up the bulk of wildfire smoke.
- Captures PM2.5 particles
- Blocks ash, soot, and smoke odor
- Keeps your indoor air safe—even when the outdoor air is dangerous
- Meets the EPA's recommended rating for filtering fine wildfire smoke particles.
Wildfire Smoke FAQs
Facts About Wildfires
Over 70,000 wildfires burn in the U.S. every year.
Wildfire smoke can travel 1,000+ miles, affecting states that aren't even near the blaze.
Exposure to wildfire smoke can worsen asthma, trigger heart issues, and lead to ER visits.
Indoor air can hold more fine particles during wildfire events unless it's properly filtered.
The EPA advises using MERV 13 filters or portable HEPA air cleaners during wildfire smoke events.
Don't Wait Until The Smoke's Inside.
Use the live wildfire smoke tracker and upgrade your air filters today to protect your lungs and your home.
Shop Filters For Smoke Protection
Live Windsor, ON Forest Wildfire & Smoke Map Today: Local Air Quality Tracking & Indoor Protection Solutions
TL;DR
For live wildfire smoke in Windsor, ON, start with the Air Quality Health Index (AQHI) at the Windsor Downtown and Windsor West stations on Air Quality Ontario. From there, open ECCC's FireWork smoke forecast to see whether smoke is coming, and the Ontario Forest Fire Information Map to find the fires behind it. Indoors, a clean MERV 13 furnace filter captures fine smoke particles, and at AQHI 7 or higher Filterbuy recommends adding a portable HEPA air cleaner in each occupied room.
Key Takeaways
Air can be unhealthy even when you can't see or smell smoke, says the Windsor-Essex County Health Unit.
Health Canada recommends a furnace filter rated MERV 13 or higher to capture the fine particles in wildfire smoke.
Filterbuy's take: a sudden AQHI jump on a hazy day usually means smoke particles, which a furnace filter catches.
Ontario's legislated fire season runs from April 1 to October 31, so smoke can still show up in the fall.
How Do I Check a Live Wildfire and Smoke Map for Windsor, ON Today?
Filterbuy's routine begins with the AQHI, which tells you your health risk right now. The smoke forecast then shows what's coming, and the fire map shows its source. Windsor's two stations don't always read the same.
FireSmoke Canada calls its 48-hour forecast experimental, so use it alongside FireWork.
Why Is It Smoky in Windsor When Nothing Nearby Is Burning?
Windsor, Canada's southernmost city, sits well outside Ontario's designated fire region, which covers the north of the province. Smoke here rides in on regional winds.
By mid-July 2026, almost 850 fires were burning across Canada, and smoke from northwestern Ontario had blanketed the southwest. On July 16 the region's AQHI reached 10 under an orange-level warning, CBC News reported, and the City of Windsor moved day camps indoors and closed outdoor pools.
Windsor AQHI Decoded: What Each Level Means
The Air Quality Health Index rates short-term health risk on a 1 to 10+ scale. Air Quality Ontario sorts readings into four bands: low risk (1–3), moderate risk (4–6), high risk (7–10), and very high risk (above 10).
Risk bands and health messages from Air Quality Ontario; filter steps are Filterbuy's. AQHI readings for Windsor Downtown and Windsor West update hourly.
Filterbuy's action line is AQHI 7, the start of Air Quality Ontario's high-risk band. At that point we recommend four steps: MERV 13 in your furnace, the thermostat fan set to On, a portable HEPA air cleaner in each occupied room (bedrooms first), and the house closed up. At 4–6, get the filter in and keep a spare. At 10+, follow Environment Canada and health unit guidance first, because filtration is only one layer.
What most smoke maps miss: A University of Windsor study found ozone drove Windsor's daily AQHI on 88% of days from 2016 to 2019, while PM2.5, the fine particles that make up most smoke, led on just two. So a sudden jump on a hazy day most likely means smoke particles, which a MERV 13 filter is built to catch.
Cross-border tip: Detroit's U.S. AQI (0–500) doesn't translate to the AQHI; use the AirNow map only for border-area sensor detail.
Is Wildfire Season Over in Windsor-Essex? (Updated September 25, 2026)
Not officially. The season runs to October 31, and the province's September 23 update still listed 27 active fires in the Northwest Region and one in the Northeast.
For now, Windsor's air is calm: both Windsor AQHI stations read AQHI 2 (low risk) on September 24, with a low-risk forecast through Friday.
What the Map Can't Tell You: Filtering Indoor Air in Your Windsor Home
Every map above measures outdoor air, yet smoke gets inside. The U.S. EPA notes that with doors and windows closed, indoor PM2.5 typically sits around 55% to 60% of outdoor levels during smoke events. In our experience making filters, smoke also loads filter media faster than everyday dust.
When Environment Canada issues a warning, its guidance and the health unit's come first. After more than a decade of building filters for homes across North America, here's the routine Filterbuy adds at AQHI 7 and above:
Fit a MERV 13 (Optimal) filter before smoke arrives. It's the rating Health Canada recommends for smoke. The U.S. EPA notes that most furnaces handle MERV 13 without equipment problems when the filter is replaced often, so just confirm your size. Odd size? Order a MERV 13 filter ahead.
Set the thermostat fan to "On" instead of "Auto." Auto filters only while the system heats or cools; On filters continuously, as the Windsor-Essex County Health Unit also advises.
Run a portable HEPA air cleaner in each occupied room, bedrooms first. That's Filterbuy's recommendation, beyond the usual single clean-air room. For sizing, Health Canada advises a smoke CADR of at least two-thirds of the room's square footage, or about 80 for a 120 sq ft bedroom. Across 10 wildfire studies, portable cleaners cut indoor PM2.5 by 57% on average (NCCEH).
Close the house up. Shut windows and doors and set the system to recirculate (check your HRV or ERV manual). Health Canada also advises skipping candles, smoking, and vacuuming without a HEPA vacuum; skip frying too.
Inspect the filter during smoke instead of following a schedule. Replace it when it looks dirty (dark brown or black), which the EPA says can be sooner than the maker's normal interval, and keep spares on hand.
Skip ozone-producing air cleaners. Health Canada advises avoiding them, which rules out ozone generators.
When the smoke clears, let fresh air back in. Health Canada advises switching back to fresh air once the plume passes, since pollutants can get trapped indoors.
Before next season starts on April 1, note your filter size and keep a spare Filterbuy MERV 13 on hand. Then sign up for Air Quality Ontario alerts.
Our job is the air inside your home. We've shipped filters into more than a decade of North American smoke seasons, and the pattern holds every year: the homes that handle smoke season best fit a clean MERV 13 before the haze arrives.
Filterbuy Indoor Air Quality Team
No Furnace Access? Options for Renters and Apartments
Renters and homes without ductwork still have good options:
Make a portable HEPA air cleaner your main defence. Without central air, it's the primary layer, sized with Health Canada's CADR rule above.
Use a DIY box-fan cleaner as a stopgap. EPA research shows a box fan with a 20x20 MERV 13 filter attached cuts indoor smoke cost-effectively. Use a certified fan made in 2012 or later, and don't leave it running unattended.
Talk to your landlord early about fitting a MERV 13 filter before smoke season.
Filter the air on the drive, too. Keep car windows closed on recirculate, as the American Lung Association advises.
Who in Windsor-Essex Is Most at Risk, and When Should You Get Help?
The Windsor-Essex County Health Unit considers people with asthma, COPD, heart disease, or other chronic conditions to be at higher risk, along with infants, young children, pregnant people, adults 65 and older, and outdoor workers.
If you or someone you care for has shortness of breath, wheezing, a severe cough, dizziness, or chest pain, stop outdoor activity and contact a health provider, or call Health811, Ontario's free 24/7 health line. In an emergency, call 911.
Supporting Statistics
17% more asthma ER visits: U.S. asthma emergency visits ran 17% higher than expected on 2023 Canadian smoke days, per the Centers for Disease Control and Prevention (CDC).
About 50% less indoor PM2.5: The U.S. Environmental Protection Agency (EPA) says a high-efficiency HVAC filter may cut indoor PM2.5 by about 50% with the fan running continuously.
9th worst for particle pollution: The American Lung Association ranked metro Detroit, just across the river, 9th worst nationally for year-round particle pollution in 2026.
Essential Windsor Resources
Related Filterbuy guides: live Ontario wildfire and smoke map · live Canada wildfire and smoke map · MERV 13 vs. HEPA for wildfire smoke · how far wildfire smoke can travel
Frequently Asked Questions
Where Can I See a Live Wildfire Smoke Map for Windsor, ON?
Use ECCC FireWork for the smoke forecast and FireSmoke Canada to cross-check, then check Windsor's AQHI on Air Quality Ontario.
Is It Safe to Go Outside in Windsor During Wildfire Smoke?
Follow Air Quality Ontario's health messages. Normal activity is fine at 1–3; at 7 or higher, cut back outdoors; at 10+, stay inside and follow local guidance, especially with a heart or lung condition.
What MERV Rating Do I Need for Wildfire Smoke in Windsor?
MERV 13. Health Canada recommends MERV 13 or higher for smoke, and it's the rating Filterbuy recommends. The U.S. EPA notes that most home systems accommodate it when the filter is replaced often.
Does Filterbuy Ship Air Filters to Windsor, ON?
Yes. Filterbuy.ca ships free across Canada in CAD, with 600+ sizes plus custom sizes. Questions? Call (855) 345-8289.
Glossary
AQHI (Air Quality Health Index): Canada's 1 to 10+ health-risk scale for air pollution.
AQI (Air Quality Index): The U.S. 0 to 500 scale used in Detroit.
PM2.5: Fine particles 2.5 micrometres or smaller, the main health concern in smoke.
MERV 13: A Minimum Efficiency Reporting Value rating designed to capture a large share of the fine particles in smoke.
CADR (Clean Air Delivery Rate): An air cleaner's filtered airflow.
HEPA: High-efficiency particulate air filtration used in portable air cleaners, not in home furnaces.
HRV/ERV: Ventilators that bring outdoor air into a home.
Special Air Quality Statement: An Environment Canada poor-air alert.
Get Your Windsor Home Ready for the Next Smoke Event
When the Detroit River next disappears into haze, a Filterbuy MERV 13 (Optimal) filter captures fine smoke particles in your size, including custom sizes, with free Canadian shipping and Subscribe & Save for spares. Smoke smell is a gas, which pleated filters don't capture, so odours belong to our Odour Eliminator (carbon) line.