I have severe allergies/asthma and my wife and I just moved into a new place a few months ago. A neighbor burns a wood fireplace often in the winter and the smell was coming into our home badly. I invested in a 3M Filtrete 1900 Ultimate Allergen Reduction filter to go onto the York furnace installed in our new home. The air filter has helped the problem a ton. On the worst nights (where it's foggy and smoke sits still outside) it still smells inside some, but not nearly as bad as before. I have a local contractor who I asked about reducing smoke smell and just allergies in general who recommended a whole house cleaner to be installed on the furnace.
The recommended whole house cleaner is a York Affinity Media Filter (MERV 13). It costs $ to install. My question for you is: how much more effective at stopping smoke smells and reducing allergens would the whole house cleaner be vs. just keeping the 3M Filtrete 1900 filter that is now on the furnace? Trying to decide if it is worth my money to put the whole house cleaner on. If it will help allergies/asthma I'm willing to pay for it, just want to be sure it's a big upgrade. Thanks for your input in advance!