These planters have a small, quiet fan built into the base. It is best to select a combination of many purifying plants to cover a wide range of chemical pollutants. These two plant types are unique in that their leaf pores open in the dark for nighttime air purification too. An excellent and clean method to grow plants indoors without soil is hydroponics. Plants grow in an inert medium with water, air and fertilizers.
Many companies sell complete single plant and larger hydroponic planter kits.
Metal halide lights are good for vegetative growth. Update Bulletin No. I plan to switch to efficient compact fluorescent lights in my home as you suggested. The electricity savings are usually in the 75 percent range. Light wattage refers to how much electricity a bulb uses, not how bright it is.