While most air purifiers have powerful motors that draw in air from all around the home, they have a hard time pulling air from inside crawl spaces, attics, closets, carpets, upholstery, plaster and other porous surfaces where pollutants, such as smoke, often lodge themselves for years
"As people smoke or as they go through certain occupations, the damage is happening," Dr
Assessement of Air Pollution in Bangkok Metropolitan Region, Thailand
These are different devices with a different risk profile
Two out of five have themin the big cities a larger proportion
JD's friend, John, an Oklahoma State student, fired up a butane torch, heated up a rig similar to a bong and carefully dropped a pebble-sized piece of golden-colored wax, a dab, for JD to inhale