Smoking in an enclosed house

Smoke just drops as the smoke particles are heavier than air. In most cases, the air conditioner or heater intake will absorb many of these particles. One alternative to getting rid of smoke odor is to get odor eliminating candles. These candles have a natural ingrediant that encapsulates the smoke particle and drops it to the ground. After it is encapsulated, the odor will be eliminated. To get rid of the odorless particles, just vacuum the floor once in a while. 

Smoke is basically ash particles so small they float, but eventually everything comes down so bassically it's that yellowish dust like film on all the surfaces