Need help right now?
If someone needs immediate help with strange smell indoors, use emergency mode.
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DEVELOPMENT FIXTURE — An unusual chemical, rotten, or burning smell inside your home with no obvious source.
The essentials if you need to act right now.
Strong smell — get out, call 101. Mild — ventilate, check gas off, call if unsure.
What might I see? Observable signs — no diagnosis required.
DEVELOPMENT FIXTURE — Rotten egg smell — possible gas leak.
DEVELOPMENT FIXTURE — Burning plastic smell — possible electrical fault.
DEVELOPMENT FIXTURE — Sweet chemical smell — possible solvent or refrigerant leak.
Optional deeper explanation — not required to act.
DEVELOPMENT FIXTURE — Unknown odors may indicate gas leak, electrical smoldering, mold gas, or chemical spill.
DEVELOPMENT FIXTURE — Some toxic gases have no smell — treat worsening symptoms as emergency.
Check the scene before you approach.
Civilian-safe actions you can take.
DEVELOPMENT FIXTURE — Ask if anyone feels dizzy, nauseous, or has headache.
DEVELOPMENT FIXTURE — If yes or smell is overpowering — leave immediately.
DEVELOPMENT FIXTURE — If gas suspected — no electrical switches.
DEVELOPMENT FIXTURE — From outside, call 101 or gas utility with description of smell.
When and how to get professional help.
DEVELOPMENT FIXTURE — When in doubt, evacuate and call professionals. Do not investigate with open flame.
DEVELOPMENT FIXTURE — Call 101 for strong unknown chemical smell or illness.
DEVELOPMENT FIXTURE — Gas company for rotten egg odor from outside phone.
DEVELOPMENT FIXTURE — 112 if person collapsed or difficulty breathing.
Dangerous actions, when not to attempt rescue, and common myths.
DEVELOPMENT FIXTURE — Do NOT mask smell with incense or spray without finding source.
DEVELOPMENT FIXTURE — Do NOT ignore smell that returns nightly — may be CO or gas.
DEVELOPMENT FIXTURE — Do NOT use candles to locate source.
DEVELOPMENT FIXTURE — If you cannot see smoke, the strange smell is harmless
DEVELOPMENT FIXTURE — Gas and CO are invisible. Electrical smoldering produces toxic smoke before visible flames.
Other scenarios in the same family.
Mixed chemicals
DEVELOPMENT FIXTURE — Bleach and acid, bleach and ammonia, or other cleaners were mixed and fumes are rising.
CO alarm
DEVELOPMENT FIXTURE — Your carbon monoxide detector is beeping or alarming.
CO poisoning
DEVELOPMENT FIXTURE — People show signs of carbon monoxide poisoning from heater, generator, or enclosed fire.
Child electrical shock
DEVELOPMENT FIXTURE — A child has touched an electrical socket, bitten a cord, or pulled a live plug.
DEVELOPMENT FIXTURE — If mild and improving with ventilation — still schedule professional inspection.
DEVELOPMENT FIXTURE — Check neighbors if smell may be from adjacent unit.
DEVELOPMENT FIXTURE — Do not re-enter until source identified.
DEVELOPMENT FIXTURE — Persistent unexplained odors need professional inspection.
DEVELOPMENT FIXTURE — Medical care if respiratory symptoms develop.
DEVELOPMENT FIXTURE — Explosion or poisoning from ignored odor.