Last week, Milan became the first nation to ban smoking within 30ft distance of other people at bus and tram stops, as well as in parks and green spaces, sporting venues, children’s play areas and even cemeteries.

However, it’s not just Milan where the air is getting cleaner. The pandemic imposed restrictions on international and domestic travel around the world mean we’re all breathing a little bit better. It’s estimated that nitrogen dioxide levels dropped by as much as 10-50% across the UK during the first lockdown, with other global cities seeing similar patterns.

But how important is air pollution levels to holidaymakers?

It turns out, it’s pretty important, according to research by Hoo, the hotel room offer platform. Hoo surveyed 2,569 people on their feelings around air quality and its influence within the holiday booking process.

The results show that 50% of people would opt for a destination with better air quality if it meant travelling for longer. Perhaps more notable is the fact that 48% of respondents stated that they would pay more money to holiday in a location with better air quality over somewhere more affordable but with higher levels of pollution.

With this in mind, Hoo also looked at which of the world’s top travel destinations currently offer the perfect holiday mix of affordable hotel rates and low levels of air pollution.

Hoo looked at the average cost of a hotel per night across 47 destinations around the world, as well as air quality pollution based on particulate concentration levels during the highest hour of the day on the worst air quality day of the year, measured in particulates per metre cubed (µg/m3). Hoo then gave each destination a pollution-free hotel price score to reveal where offers the best mix of both.

The research shows that for those looking for an affordable holiday destination while remaining conscious about the level of air pollution they’re exposed to, Rio de Janeiro is the place to go.

On average, a hotel in Rio de Janeiro will set you back just £49 per night while at 35 µg/m3, it’s home to the third-lowest levels of air pollution, with just Auckland and Toronto ranking better.

As a result, Rio de Janeiro ranks top of Hoo’s hotel air pollution index with a score of 17.1.

Moscow ranks second with an index score of 18.9. Air pollution levels are currently 41 µg/m3, while the average hotel will cost you just £46 per night.

Bogota (24), Las Vegas (28.2), Toronto (28.3), Chicago (29.3), Sao Paulo (29.3), Auckland (30.1), Vancouver (33.8) and Lison (35.4) also rank in the top 10 with the best ratio of affordable hotel rates and clean air.

In contrast, Cape Town ranks as the worst destination for clean air quality. While the city is home to an average hotel price of just £66 per night, air quality levels are an astonishing 1,680 µg/m3.

Singapore also ranks poorly with 490 µg/m3 and while much less polluted than Cape Town, Singapore is also home to a cost of £152 per night for the average hotel.