Air purifiers in Canada can be found at general stores such as Walmart, Canadian Tire, Home Depot or another outlet. However, usually, there will be more selection when ordering online from websites such as Amazon. Shipping will depend on your specific location, the time of year (holidays are going to be busier, so if you’re ordering as a gift, it’s best to order well ahead of time). If you’re looking to get one today, you can easily search for your nearest supplier and visit them during their operating hours.