It is awesome that you are in a strong position to find the most appropriate furnace filter for your current HVAC system. And if you need to replace your current air conditioning and cleansing system, it’s great that you are in a good position to find something smart and sustainable and best suited for your home. It is difficult to stem the excitement once the new HVAC system and furnace filter is installed. You will not even hear it purr because it will hardly be making a sound. But can you do the necessary installations in the first place?
And assuming that you have been able to prize your home with the best available HVAC system and the appropriately best furnace filter; will it remain so for the foreseeable future? It is wonderful that you have full use of the internet to help you towards sourcing and supplying your home towards sustainability and clean use and improved help. But the glass is only half full. You still need to be actively involved in the process.
Be prepared to spend more than just a few minutes here and there trying to find a new conditioner or filter. Be prepared to dig deep well below the surface by becoming critically engaged in close reading of critically composed and essentially honest product reviews. There will be no bias or promotional material to entice you. One of the worst jibes of online shopping has been this promotional aspect whereby prices are continuously being knocked down to ridiculously low levels. It does no justice to the industrious enterprise.
It does no justice to those that have spent years designing and manufacturing new portable systems and its accompanying filters. Fortunately, your cheaper than average HVAC systems and furnace filters will be few and far between. It is a good idea, in any case, to brace yourself for a bit more expense. Doing so bring you long term benefits. One of those benefits will mean you will be sparing your home a lot more expense.
After equipping yourself well with good reviews that do not necessarily reveal prices but spend more time explaining how the systems and filters operate, you are setting yourself up nicely for your best HVAC system and your best furnace filter. But you still need to learn how to install it. The manuals that you are supplied with are good on its own but they can also be archaic in the sense that they utilize too much technical jargon.
To this end, you can simply return to your online guides that are user-friendly in its simplicity and ability for all readers, even non-native English speakers, to understand them. Alongside those directions will also be important information on how to properly maintain your systems and filters. And when these filters need to be replaced, there is important information on what to look out for in new filters.