The impact of ETS on individuals has received a lot of publicity in recent years, due to the deterioration of indoor air quality and the dislike of ETS odor by non-smoker. This study was conducted to identify the effect of the far IR fluorescent lamp and far IR generating pad for the practical solution of ETS problems. The concentrations of ETS suspended particles, CO₂, CO and the distribution, diameter, surface area and volume of ETS particles by the far IR fluorescent lamp and far IR generating pad treatment were analyzed to evaluate the possibility of conversion to anion from cation and the condensation of ETS particles in the real room. Also, the changes of odor strength by far IR were tested by the development of an electronic nose system for determining ETS odor. There is no difference between control and far IR treatment in changes of the concentration of CO₂ and CO from ETS. However, the concentration of ETS suspended particles decreased about 20% after 1 hour with the far IR fluorescent lamp treatment. The rate of decrease of suspended particles depends on the number of far IR lamps and time. Increasing the number of lamps and duration of time increased the removal efficiency of the concentration of ETS suspended particles in the room. The particle size, surface area, and volume of suspended particle increased during 8 hours after smoking. The growth rate of suspended particle diameter was greater with the far IR treatment compared with control. This study provided a practical solution that could be used to improve indoor air quality.