Sprays and inhalers are available by prescription only, and it's important to see your doctor before buying the patch and gum over the counter.

As well as taking a supply of masks, team Canada will bring air purifiers, asthma puffers, eye drops, nasal sprays and throat lozenges to help with the side effects of poor air.

Using a nicotine replacement, such as gum, patches, inhalers, or nasal sprays, can be very helpful.