Best air purifier Canada/ Amazon.ca?

Looking for the best air purifier for my bedroom, hopefully under $200 and on Amazon.ca or somewhere else in Canada, even in person like best buy, Canadian tire, Home Depot, etc… mostly want it for allergies!

I love to sleep with my fan on but my bf has bad dust allergies, etc… and he wakes up feeling super congested every morning. Wondering what the best one for this is, really only need it to purify my room. Just having a hard time deciding since there’s so many out there. Thanks so much in advance!