No place to hide And dust mites aren't the only invisible threats. Many people worry about the pollution outside, but can children hidden at home escape from danger?
室內除了塵之外，還有許多同樣是肉眼看不見的危害。多數人以為，雖然外面汙染嚴重，但孩子躲在家裡多少可以避避難吧？