Costco monitors are the new standard for people buying computers and monitors, but some people are concerned about the potential health risks associated with these expensive products.

In March, a survey of more than 1,000 Costco shoppers found that 60 per cent of respondents had concerns about the health effects of consuming white computers and a third of them said they had never had a problem with the product.

The survey also revealed that 80 per cent said they did not want to buy the product, according to the New York Times.

Costco spokeswoman Kelly Silliman said the company is working with the American Lung Association and the National Institute for Occupational Safety and Health (NIOSH) to provide advice on the best monitors for people.

The company is also working with other industries, such as hospitals, to ensure they do not sell white monitors with harmful chemicals, such like benzene and lead, she said.

Silliman noted that people should always ask about the monitor before buying it and not assume the product is safe because of its colour.

Costca is also investigating the use of white computers in a way that makes it safer for consumers.

The US Consumer Product Safety Commission (CPSC) said it is conducting a comprehensive review of the monitors in the US.

Sink said she is aware of reports of health problems in people who purchased white monitors from Costco.

“We have had no reports of adverse health effects related to white monitors,” she said in a statement.

Costofans.com spokeswoman Megan O’Sullivan said the retailer is “actively working with healthcare professionals to identify possible health hazards associated with the use and appearance of white monitors”.

She added that Costco has launched a voluntary program to improve the appearance of its white monitors and has been “actively educating” customers about the safety of white products.

Costo, which sells about 2.3 million monitors a year, is not the only retailer to have seen the issue of the monitor’s colour, although its sales have increased over the past year.

In September, US retail giant Wal-Mart introduced a $25 voucher to its website that can be redeemed for a white monitor, but it has not yet been widely available.

Costs.com said the voucher was in response to “overwhelming consumer demand”.

Wal-Mart’s website is no longer accepting vouchers, and no refunds are available.

Sellers are also being warned that they should avoid buying white monitors in dark colours because they can cause a problem in certain environments, such a light bulb or a laptop monitor, said Lisa Fennell, senior consumer safety manager for the Consumer Product Association of America.

In a statement, the group said that people were increasingly purchasing monitors in “non-traditional” colour schemes and are often “brought into the home by people they do no know”.

“We recommend consumers take these recommendations seriously,” she added.

Costa and its competitors have been making improvements in their products to try to protect consumers from harmful chemicals.

In December, US health officials announced they were conducting a new review of all white computer monitors in light of a new study which found that the chemical, dimethyl sulfide (DMS), was “likely carcinogenic to humans”.

The report, which was published in the journal Environmental Science and Technology, found the chemical is a known endocrine disruptor.

In response to the findings, the US Environmental Protection Agency (EPA) ordered that all white computers be manufactured with higher levels of DMS.

Costanci said the monitor companies were “making efforts to protect their products” and would continue to work with the CPSC to improve their products.

He added that they are also working to address the safety concerns associated with their products, which include testing for dioxins, chemicals known to cause cancer.

Costacom is the only major American retailer that does not make white monitors.

The CPSC is a US federal agency, with jurisdiction over consumer safety.