In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I have an old HVAC system with Lennox G23 series gas furnace and Lennox HS25 series A/C; the air cleaner attached to the system uses Space-Gard 2200.
Unfortunately, the air purifier system does not help my wife's allergies and her coughing gets worse each year despite allergy shots and additional medication. She coughs very heavily several times during the day and night for several minutes.
We have used in the last few years Sharper Image portable air purifiers which seemed to help initially but not anymore.
Talking to Manager of the shop where I buy my filter, he recommended to install Aprilaire Model 5000 stating that it might help; to do that we need to move the adjacent duct a few inches to right.
In case I don't want to invest in 5000 model, I was told I could replace the current cassette with that of 2000 series but the performance would not improve much.
Searching internet for alternative solutions, I saw several posts featuring the benefits of room-air purifiers with HEPA filters which interested me.
Below are my questions if you could please provide your feedback:
1. If you have experience with Aprilaire systems, do you recommend 4000 series or Model 5000 given the severe allergic situation my wife has? If I take this route are there any points that I should be careful about?
2. Would you recommend to try the cassette/filter of Series 2000 before taking route 1?
3. Instead of upgrading the current system, would it be more effective for my wife's allergies if I buy room-air purifiers with HEPA filters instead?
4. Finally, if I prefer to go with room-air purifiers with HEPA filters, do you have any experience with Oransi v-hepa Air purifiers (Finn UV or Max)? There were very positive reviews in the internet.
Many thanks in advance for your feedback and recommendations.