Secondhand Marijuana Smoke Exposure Studies
This guide outlines the findings from studies on secondhand marijuana smoke exposure, discussing its effects and public health implications.
Is secondhand cannabis smoke in an apartment a legal problem?
Usually yes, or at least a serious legal risk. Secondhand cannabis smoke drifting between units can trigger lease violations, eviction, private nuisance claims, or municipal fines, even in states where adult-use cannabis is fully legal. Legalization removed criminal penalties for the person smoking; it did not create a right to smoke indoors in shared housing.
secondhand smoke from joint vs vape
Cannabis smoke carries many of the same fine particles and irritants as tobacco smoke, which is why most housing providers treat the two the same way.
How to Protect Against Secondhand Cannabis Smoke at Home
Can a landlord ban cannabis smoking inside a rental unit?
Yes, in every US state that has legalized cannabis. Landlords, property managers, and HOAs can prohibit smoking of any substance in units, on balconies, and in common areas, and they can write that ban directly into the lease.
protect against secondhand cannabis smoke at home
These bans are enforceable as ordinary lease terms. Breaking one typically starts with a cure-or-quit notice and can escalate to an eviction filing if the smoking continues.
Secondhand Smoke From a Joint vs a Vape: Which Puts More in the Air?
Public housing and federally assisted properties face stricter limits. HUD requires public housing agencies to maintain smoke-free policies, and because cannabis remains illegal under federal law, subsidized landlords can deny or terminate tenancy for cannabis use.
What legal claims can a neighbor bring?
- Private nuisance: smoke entering another unit and interfering with its use and enjoyment.
- Breach of quiet enjoyment: usually raised against the landlord for failing to stop persistent smoke.
- Constructive eviction: in severe cases, letting a tenant break a lease without penalty.
- Fair Housing Act claims: if a tenant's medical sensitivity to smoke is a disability and the landlord refuses a reasonable accommodation.
Do medical cannabis patients have any protection?
Protection is limited. Many medical cannabis states bar landlords from discriminating against patients based on patient status, but nearly all still allow no-smoking rules, and courts generally do not force a landlord to permit smoking as a reasonable accommodation.
Vaporizing, edibles, tinctures, and topicals are the common workarounds because they do not produce drifting sidestream smoke.
Which state and local rules matter most?
Some cities and states extend smoke-free housing ordinances to cannabis, letting health departments fine landlords or tenants. Others leave the entire question to the lease. California, Colorado, and New York, for example, let landlords ban cannabis smoking, and some municipalities add stricter multi-unit rules on top.
What should renters do?
- Read the lease for smoking, vaping, and cannabis clauses before signing anything.
- Ask whether balconies, patios, and shared courtyards fall under the ban.
- Choose smoke-free alternatives such as edibles or tinctures where the lease allows them.
- Document complaints and repair or accommodation requests in writing if smoke enters your unit.