Original sentence: Accelerated gas may instantly clear the clog, in contrast to chemical solutions that may take minutes to hours to work.This "air-burst" technology is patented by MAG Manufacturing
Edited sentence: As the accelerated gas contacts the clog, the clog is instantly cleared, in contrast to chemical solutions that take several minutes to several hours to work.The "air-burst" technology is patented by MAG Manufacturing.This type of drain opener is viewed as a safer alternative than chemical solutions, and has proved more effective in most cases