Idaho 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
Protect Your Air: Current Wildfire and Smoke Map in Idaho
Idaho’s smoke picture is shaped by basin-and-range terrain, valley inversions on the Snake River Plain, and fast wind shifts through gaps and canyons. Use the live tools below to see current conditions and set a practical plan at home.
Key Takeaways
For live conditions, start with the AirNow Fire and Smoke Map, then check Idaho DEQ real-time AQI and forecasts.
Limit outdoor activity at AQI 101+. If you must be outside in heavy smoke, use a well-fitting N95 or P100.
Indoors, run the system on “recirculate” and use the highest MERV your system can handle. Many homes use MERV 11 daily and move to MERV 13 during smoke if airflow stays normal. Add a HEPA room purifier.
Inspect and replace filters more often during prolonged smoke. One-inch filters load quickly.
Idaho Season Snapshot
Wildfire smoke risk typically increases from late spring through early fall. Prescribed burns can create short smoke periods in spring and fall. In winter, residential wood heating can raise PM2.5 in some valleys, so continue to check AQI even outside fire season.
Idaho Patterns to Watch
Valley inversions: Overnight and morning inversions can hold smoke near the surface across the Snake River Plain and intermountain valleys, with improvement as daytime mixing increases.
Gap and downslope winds: Canyon and pass winds can transport smoke quickly toward Boise and other valley cities.
Regional transport: Smoke from Oregon, Washington, or Montana can affect Idaho even when in-state incidents are small. Check regional layers, not just local fires.
Why Smoke Matters
Wildfire smoke raises PM2.5, fine particles that penetrate deep into the lungs and can affect the heart and respiratory system. Higher-risk groups include children, older adults, people who are pregnant, and anyone with asthma, COPD, or heart disease. Short-term effects can include coughing, wheezing, irritated eyes, chest tightness, headaches, and fatigue. Reduce exposure when AQI rises.
Home Plan for Smoky Days
Check the data. Look at AirNow for plumes and monitors, then review Idaho DEQ for local AQI and forecasts. Recheck later in the day as winds shift.
Set HVAC to recirculate. Keep windows closed so air passes through your filter rather than pulling new smoke indoors.
Use efficient filtration. If your central system maintains normal airflow, install MERV 13 during smoke events. If resistance is too high, use MERV 11 and add a HEPA room purifier sized for the space.
DIY stopgap if needed. A box fan with a MERV 13 filter, as recommended by the EPA, can reduce indoor smoke when built and used safely. Use newer certified fans and follow assembly and safety notes.
If you must go outside. Wear a NIOSH-approved N95 or P100 that fits well.
When to Change Filters
Check monthly by default and every one to two weeks during prolonged smoke. Replace early if the media looks gray or matted or if airflow drops. One-inch filters load quickly; two- or four-inch pleated filters last longer if your cabinet allows. Return to your normal schedule once AQI improves for several days.
Order Exact-Fit Filters With Fast Shipping
Open the AirNow Fire and Smoke Map, confirm today’s AQI for your location, and set your system to recirculate.
If you need high-efficiency filters, order MERV 13 or MERV 11 from Filterbuy in standard or custom sizes. Filters are made in the USA and ship fast with free delivery, and Auto Delivery keeps replacements on schedule through Idaho’s smoke season.
FAQs
How do I check wildfire smoke near me in Idaho right now?
Open the AirNow Fire and Smoke Map and zoom to your town. Then check Idaho DEQ’s real-time AQI map and daily forecast.
What AQI level should I start limiting outdoor activity?
Begin limiting at AQI 101 and higher. Sensitive groups should be cautious even at Moderate levels.
Why does smoke linger in some Idaho valleys?
Overnight and morning temperature inversions in the Snake River Plain and intermountain valleys can trap smoke near the ground until mixing improves later in the day.
Do HVAC filters help with wildfire smoke indoors?
Yes. Use the highest MERV your system can handle while keeping normal airflow. Many homes use MERV 11 daily and switch to MERV 13 during smoke if the system supports it.
Should I add a portable air purifier?
Yes. Use a HEPA purifier sized for the room and keep doors and windows closed to create a clean air space.
Are DIY box fan filters effective?
They can help as a short term option when built and used safely. Use a newer certified box fan with a MERV 13 filter and do not leave it unattended.
How often should I change filters during smoke season?
Check monthly by default. During active smoke inspect every one to two weeks and replace early if the filter looks gray or matted or if airflow drops.
What HVAC settings should I use on smoky days?
Close windows and outside air intakes. Set the system to recirculate and run the fan so air passes through the filter more often.
What about swamp coolers and window units?
Avoid pulling outdoor air during smoke. Reduce use or cover outdoor intakes where safe. Window units should run on recirculate and be paired with a HEPA purifier in the room.
Do masks help outside in heavy smoke?
A well fitting N95 or P100 respirator reduces particle exposure. Cloth and surgical masks are not designed for fine smoke particles.
Is it safe to exercise outside if I cannot smell smoke?
Base your decision on AQI rather than smell. Fine particles can be elevated even when odor is mild.
Who is most at risk from smoke exposure?
Children, older adults, people who are pregnant, and anyone with asthma, COPD, or heart disease. They should reduce exposure early and follow care plans.
Can pets be affected by wildfire smoke?
Yes. Keep pets indoors when AQI is high, limit outdoor activity, and create a clean air room where they spend time.
What if the smoke is from a prescribed burn?
Treat it the same as wildfire smoke. Follow AQI guidance, use indoor filtration, and limit outdoor activity until conditions improve.
Do car cabin filters help while driving?
Set the car to recirculate and keep windows closed. A high efficiency cabin filter can reduce particle entry. Avoid long drives in very high AQI when possible.