The HEI said the majority of national standards on cleanliness were being met.

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Chinese historians commented in the third century on the cleanliness of the Japanese (though they made no mention of their nylon towels).

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Another report, from the financial watchdog Audit Scotland, called for improvement after it conducted spot checks on 74 hospitals and found only half had high levels of cleanliness on wards.

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This is because, even were it not cheap and plentiful, gas would be attractive simply on the grounds of cleanliness.

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Bellagio had lower scores on some factors such as cleanliness, service and overall satisfaction.

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The government would grant clean energy credits to operators of non-coal power plants on a scale according to the cleanliness of their generation.

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It suggests that too much cleanliness early in life can leave the immune system weakened later on.

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But where Hummel sees clarity and cleanliness, others see a flatter, colder image and pixellation on straight edges.

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Some become cleanliness freaks, with some displaying a level of fanaticism bordering on neurotic as they try to keep germs away from their bodies.

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Inspectors who visited the hospital in December 2012 and January 2013 said it failed on eight out of nine standards, including consent to care and treatment, and cleanliness and infection control.

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Husson, who is neutral on the stock, said the next challenge is to improve customer checkout times and store cleanliness.

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