Why not let the kids indoor playground stay too long

Every Sunday or holidays, parents will take their kids to go out, play equipment here If you go to an indoor children's play equipment, please do not let the children stay too long.
Indoor children's play equipment and more are now located in the downtown business district, shopping malls and other more densely populated area, there are two main types: one is an open playground for young people, which are mostly Dance Dance Revolution, game consoles and other dynamic, noisy rides; another customer base is too small infants ages, which features electric Trojans,indoor trampoline, bumper cars and other recreational facilities. Here it is indeed a good place for winter fun, but the indoor playground because relatively closed environment, the relative noise also relatively large, and indoor long time blowing air conditioning, air does not circulate. Due to the weather, to play indoor children's play equipment is an endless stream of children, and stay for at least a three-four hours.
Playground toys and play equipment, because often there are children touch, if not promptly cleaned and disinfected, easy to breed a variety of bacteria, spread respiratory diseases, intestinal diseases, skin diseases. So we played the game in the future must be timely to do their own health. Indoor children's play equipment out of the sun than green, so parents should not let children staying too long in the indoor playground.
Sunshine green healthy growth of children is the most beneficial place. Parents can on a sunny winter days, many children go outdoors children's play equipment, to allow more children sentiment about the breath of nature.