It USES no toxic cleaning agents like ammonia or formaldehyde, and checks the allergies of clients and their pets to avoid using materials that might aggravate those conditions.

她从不使用氨水或者甲醛之类的有毒洗涤剂，并仔细询问客户和他们的宠物的过敏症病史，以避免使用加剧他们症状的材料。

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Mr Lifton insists that there is no regulation that prevents the use of his company's device on aircraft, however, since “it is no more flammable or toxic than a T-shirt or a newspaper.”

而Lifton先生则称没有规则会阻止他公司生产的设备用在航空器上面，因为“它不比一件T-恤或者一张报纸更加易燃或者有毒。”

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Another advantage of the biological system is that it requires no heating or cooling, and no toxic chemicals.

生物学处理过程的另一个好处是它无需加热或冷却，而且无有毒化学品。

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AIDS. The council's scientists refused to let the drug be tested on humans because it is highly toxic, and because there is no evidence that it does any good.

ECONOMIST: Merging the first and third worlds

While much of the waste produced is considered toxic, there was no evidence it has harmed human health.

NPR: Solar Industry Grapples With Hazardous Wastes

The other is that it vanishes within seconds, leaving no toxic residue.

FORBES: The Ozone Solution