3 years car is quite new.
Air filters are slightly different every car, which is a large box that provide air to the engine.
It could be round or square. You can go to Canadian Tire's air filter section, check the year and maker of the car to buy the right one. Turn the screw or put off the clips and then open the cover, it is very easy to replace.
If you did not change it for a while, the car engine will not run smoothly.
It happened to my minivan few months ago. The van is about three years old too.
If you only get oil change regularly, this could be the problem.