SmokeHazard.com · Health effects of smoke exposure in homes · Sources: CDC, EPA, ATSDR
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The recovery playbook

After the Smoke: A Health-First Guide to the Days and Weeks That Follow

The plume is gone, the news has moved on — and your household is still breathing whatever came inside. Here's what to do in the first 48 hours, the first two weeks, and the months after, in the order that protects health first.

FIRST 48 HOURS

Protect lungs first, evidence second

Check on the vulnerable
CDC's at-risk groups — children, older adults, pregnant people, anyone with asthma, COPD, or heart disease — should limit time in a smoke-affected building until it's been aired and assessed. Anyone with trouble breathing or chest pain needs medical care now, not monitoring.
Clear the air you're actively breathing
Once outdoor air is clean, flush the house: windows open, fans out. Then close up and run HVAC on recirculate with the highest-MERV filter the system accepts, plus HEPA air cleaners in bedrooms. This removes what's airborne — it does not touch what has settled.
Photograph before you wipe anything
Ash on sills, film on counters, the HVAC filter, the car outside. Two minutes of photos preserves both your health record and your insurance position. Bag the used HVAC filter instead of tossing it — it's a sample of exactly what the house inhaled.
Don't do these
Dry-sweeping or shop-vacuuming ash (resuspends fine particles — EPA warns handling wildfire ash without protection); running ozone generators in an occupied home (EPA cautions they can harm lungs at working concentrations); masking odor with heavy fragrance before anyone has assessed the source.
WEEK 1–2

Find out what actually came inside

Start the symptom-and-odor log
One notebook, two columns: who felt what, where and when; where the smell is, and what the HVAC was doing. Patterns that track with one building are the signal clinicians and investigators both need. Headaches that fade at work, a cough that flares in one bedroom, odor that returns when the heat runs — write it down with dates.
Understand why the smell keeps coming back
NIST research in a smoke-contaminated test house found smoke VOCs lodging in walls, floors, and furnishings and re-emitting for days — and found surface cleaning beat air purifiers and open windows at reducing them. If your house smells fine in the morning and smoky by late afternoon, that's reservoir behavior, not your imagination.
Get the yes-or-no answer from a laboratory
Surface and dust samples analyzed by an accredited lab tell you whether combustion residue — soot, char, ash — is present above background, room by room, including the attic and ducts you can't inspect yourself. If vulnerable people live in the home, this is the step that replaces worry with a plan. What testing involves, in plain language →
THE MONTHS AFTER

Close it out properly

If testing found contamination: remove the source
Professional remediation under an industrial hygienist's protocol — surfaces, HVAC system, porous materials — is what ends the exposure. FEMA's smoke-damage guidance notes some porous items can't practically be cleaned; replacing those is part of an honest scope. Insurance typically pays on a documented claim (see the claims guide).
Verify with clearance testing
After remediation, re-sampling the same areas confirms the residues are gone. "It smells better" is not verification; matched before/after laboratory results are.
Keep the health file
Exposure dates, symptom log, lab reports, remediation records, clearance results. It informs your physician, supports any future claim, and answers the buyer's question at resale with documents instead of assurances.
Step one of week one: know what came inside
Free smoke particle testing with laboratory analysis — either it finds the reservoirs, or it documents your home is clear.
Request free testing →
Sources: CDC (wildfire smoke health effects; at-risk populations) · EPA (wildfires and indoor air quality; ash handling; ozone generator caution) · NIST / Science Advances (persistence of smoke VOCs indoors) · FEMA (residential smoke damage guide). Not medical advice — consult a clinician for health concerns.