1. because building, adornment and the harmful material that furniture produces cause stimulation of people respiratory system and people immunity force to drop, increased people to infect the opportunity of the cold, also can make so...
◆ our country pollutes the dead number that cause every year to already amounted to 111 thousand person because of indoor air, die on average everyday 304 people, be equal to the number that disaster of countrywide every overhead tra...