Hair salon workers exposed day in and day out to the chemical agents found in hair relaters and coloring agents.

发廊的工作人员每天接触烫发水和染发剂中的化学物质。

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Formaldehyde, which is often found in nail polish and nail hardeners, is one of the riskiest chemicals for salon workers to handle because it may cause cancer after long-term exposure.

甲醛，一种常出现于指甲油和指甲硬化剂(的化学品)，是美容院工作人员处理最危险的化学品之一。

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You can see a few of them below and if you'd like to see the projection, details can be found on the Portrait Salon website or follow them on Twitter.

BBC: Portrait Salon projection