Dubai's Burj Khalifa lights up to mark Saudi Arabia's National Day

Engine: 3-litre twin-turbo V6

Power: 400hp

Torque: 475Nm

Transmission: 9-speed automatic

Price: From Dh215,900

On sale: Now

An exchange traded fund is a type of investment fund that can be traded quickly and easily, just like stocks and shares. They come with no upfront costs aside from your brokerage's dealing charges and annual fees, which are far lower than on traditional mutual investment funds. Charges are as low as 0.03 per cent on one of the very cheapest (and most popular), Vanguard S&P 500 ETF, with the maximum around 0.75 per cent.

There is no fund manager deciding which stocks and other assets to invest in, instead they passively track their chosen index, country, region or commodity, regardless of whether it goes up or down.

The first ETF was launched as recently as 1993, but the sector boasted $5.78 billion in assets under management at the end of September as inflows hit record highs, according to the latest figures from ETFGI, a leading independent research and consultancy firm.

There are thousands to choose from, with the five largest providers BlackRock’s iShares, Vanguard, State Street Global Advisers, Deutsche Bank X-trackers and Invesco PowerShares.

While the best-known track major indices such as MSCI World, the S&P 500 and FTSE 100, you can also invest in specific countries or regions, large, medium or small companies, government bonds, gold, crude oil, cocoa, water, carbon, cattle, corn futures, currency shifts or even a stock market crash. 

Install an air filter in your home.

Close your windows and turn on the AC.

Shower or bath after being outside.

Wear a face mask.

Stay indoors when conditions are particularly poor.

If driving, turn your engine off when stationary.

Engine: 1.5-litre 4-cylinder petrol

Power: 154bhp

Torque: 250Nm

Transmission: 7-speed automatic with 8-speed sports option 

Price: From Dh79,600

On sale: Now

Artist: Coldplay

Label: Parlophone/Atlantic

Number of tracks: 10

Rating: 3/5