If you have asthma or other lung disease, make sure
you follow your doctor's directions about taking your
medicines and following your asthma management plan.
Call your doctor if your symptoms worsen.
If you have heart or lung disease, if you are an older
adult, or if you have children, talk with your doctor
about whether and when you should leave the area. When
smoke is heavy for a prolonged period of time, fine
particles can build up indoors even though you may not be
able to see them.
Air cleaners can help indoors - but
buy
before a fire.
Some room air cleaners can help reduce particle levels
indoors, as long as they are the right type and size for your
home. If you choose to buy an air cleaner, don't wait until
there's a fire — make that decision beforehand. You can also
make a box fan filter, as shown in the picture. Note: Don't
use an air cleaner that generates ozone. That just puts more
pollution in your home.
For more information about home air cleaners, go to:
epa.gov/ iaq/pubs/ residair.html
Dust masks aren't enough!
Paper "comfort" or "dust" masks — the kinds you
commonly can buy at the hardware store — are designed to
trap large particles, such as sawdust. These masks generally
will not protect your lungs from the fine particle in smoke.
AIR QUALITY INDEX FOR PARTICLES
AIR QUALITY INDEX
AIR QUALITY
AIR QUALITY INDEX
0 to 50
^Sd
None.
51 to 100
Moderat^H
Unusually sensitive people should consider reducing prolonged or heavy exertion.
101 to 150
i&aSas^te&aip
People with heart or lung disease, older adults, and children should reduce prolonged or
heavy exertion.
151 to 200

People with heart or lung disease, older adults, and children should avoid prolonged
or heavy exertion. Everyone else should reduce prolonged or heavy exertion.
201 to 300

People with heart or lung disease, older adults, and children should avoid all physical
activity outdoors. Everyone else should avoid prolonged or heavy exertion.
301 to 500
Hfflsfkie
Everyone should avoid all physical activity outdoors; people with heart or lung disease,
older adults, and children should remain indoors and keep activity levels low.
v>EPA
United States
Environmental Protection
Agency
This simple fan-filter combination can reduce the amount
of the tiny, harmful particles in the air.
If you have heart or lung disease, if you are an
older adult, or if you have children, talk with
your doctor about steps you should take to protect
yourself if smoke affects your community. If you
live in a fire-prone area, plan ahead! Talk with your
doctor before fire season, so you'll know what to do
in a smoky situation.
Only your doctor can advise you about your specific
health situation. But l-.l'.Ys Air Quality Index can
help you protect yourself when particle levels are
high. Check the table to the left for specific steps
you can take.
For more information:
•	If there is an active fire in your area, follow
your local news or lire web sites for up-to-date
information.
•	About smoke and health:
airnow.gov /fires
•	About wildfires, including current status:
nifc.gov/
•	About indoor air quality:
epa.gov/ indoor-air-quality-iaq
Top right cover photo (billowing smoke) courtesy of Ravalli Republic News.
Office of Air and Radiation
EPA-452/F-21-001
epa.gov/air
May 2021
How Smoke
from Fires
Can Affect
Your Health










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w
here there's fire .
there's smoke!
Every year, millions of acres
of land burn across the United
States. Some of these fires are
prescribed - set under controlled
conditions to manage forests or
agricultural lands. Others are
wildfires started by lightning or
humans.
Fires can be a threat to life, natural
resources and property. But flames
aren't the only danger. Smoke also
can be a threat to your health.
Smoke in Bitterroot Valley, Montana, August 2002.
Smoke may smell good, but it's not
good for you.
If you are healthy, you're usually not at a major risk from
smoke. Still, it's a good idea to avoid breathing smoke if
you can help it.
Smoke is made up of a complex mixture of gases and
fine particles produced when wood and other organic
matter burn. The biggest health threat from smoke comes
from fine particles. These microscopic particles can get
into your eyes and respiratory system, where they can
cause health problems such as burning eyes, runny nose,
and illnesses such as bronchitis. Fine particles also can
aggravate chronic heart and lung diseases — and even are
linked to premature deaths in people with these conditions.
Some people are more susceptible
than others:
If you have heart or lung disease, such as congestive
heart failure, angina, chronic obstructive pulmonary disease,
emphysema or asthma, you may experience health effects
earlier and at lower smoke levels than healthy people.
Older adults are more likely to be affected by smoke,
possibly because they are more likely to have heart or lung
diseases than younger people.
^ :> m
Children also are more susceptible to smoke for several
reasons: their respiratory systems are still developing; they
breathe more air (and air pollution) per pound of body
weight than adults; and they're more likely to be active
outdoors.
How to tell if smoke is affecting you:
Smoke can irritate the eyes and airways, causing coughing,
a scratchy throat, irritated sinuses, headaches, stinging eyes
or a runny nose. If you have heart or lung disease, smoke
might make your symptoms worse.
People with heart disease
might experience chest pain,
palpitations, shortness of
breath, or fatigue. People with
lung disease may not be able
to breathe as deeply or as
vigorously as usual, and they
may experience symptoms such
as coughing, phlegm, chest
discomfort, wheezing and
shortness of breath.
When smoke levels are high
enough, even heal thy people
may experience some of these
symptoms.
Protect yourself!
It's important to limit your
exposure to smoke — especially if T, , . _
L	L J	I t smoke is attecting your area,
you may be susceptible. Here are check the Hre and Smoke map (fire
Some Steps you can take to	airnow.gov) and your local media
protect your health:	for information on how to protect
your health.
Pay attention to local air quality reports. Stay alert to any
news coverage or health warnings related to smoke. Also find
out if your community reports EPA's Air Quality Index (AQI).
The AQI, based on data from local air quality monitors, tells
you about the daily air quality in your area and recommends
precautions you can take to protect your health. As smoke gets
worse, the concentration of particles in the air changes — and
so do the steps you should take to protect yourself.

.. i. I

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Use visibility guides, where they're available. Not
every community has a monitor that measures particle
levels in the air. In the western United States, some areas
without air quality monitors have developed guidelines
to help people estimate the AQI based on how far they
can see. Check with your local air quality agency to find
out if there's a visibility guide for your area-
Use common sense. If it looks smoky outside, it's
probably not a good time to mow the lawn or go for a
run. And it's probably not a good time for your children
to play outdoors.
If you are advised to stay
indoors, take steps to keep indoor
air as clean as possible. Keep your
windows and doors closed — unless
it's extremely hot outside. Run your
air conditioner, if you have one.
Keep the fresh air intake closed
and the filter clean to prevent
bringing additional smoke inside.
Note: If you don't have an air
conditioner, staying inside with the
windows closed may be dangerous
in extremely hot weather. In these
cases, seek alter-native shelter.

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Children with respiratory
diseases should be
monitored closely during
smoke alerts.
Help keep particle levels
inside lower. When smoke
levels are high, try to avoid
using anything that burns,
such as wood fireplaces, gas
logs, gas stoves — and even
candles! Don't vacuum.
That stirs up particles
already inside your home.
And don't smoke. That puts
even more pollution in your
lungs, and in the lungs of
people around you.

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