https://www.amazon.com/Honeywell-True-Allergen-Remover-HPA300/dp/B00BWYO53G
If you look at the last image in the preview for this Honeywell air purifier you can see the CADR (Clean Air Delivery Rating) for a few different impurities. You should try to find these ratings for your air purifier to compare, the higher the number the better.
Otherwise, look into allergen reducing mattress and pillow covers if you haven't already. Washing sheets regularly should also help a little.
I hope you end up finding some relief, let me know if you have any more questions.
I bought this one last year and it works wonders. The large one is $170 but they have smaller ones as well. My sister has a smaller one and it works just as well. (But for a smaller area).
Back in college, we used a Honeywell air purifier, with a HEPA filter and ionizer, and an ozone generator. That worked in a 170sqft dorm room. The Ozone will kill any smell, but it can be slightly toxic if inhaled in large doses, but so is smoke.
This is a different design than I had those many years ago, but as long as you place it close to the hookah, it should do the trick.
I can't tell you enough that you do not want to keep the ozone generator on for long. I can tell you that in a dorm room, the room smelled as clean as a hospital operating room in 5 minutes.