One thing you should consistently consider is the best way and time to change the air filter of your central heating and cooling system unit; Even though you may have air filters that claim they last for a few months, do not guess that all the time and do not trust it! I feel it is better to be safe than sorry when it comes to changing the air filters of your central heating and cooling system unit.
So I consistently make it a point to change the air filter of my central heating and cooling system device once a month; To me and others this guarantees the fact that your air filter will not be overused and you will in no way be at risk of clogging the ductwork or overworking your central heating and cooling system to the point of it chopping down! If your central heating and cooling system was to split down because of this, it would have been a several hundred dollar service bill you could have avoided by simply just changing the air filter of your central heating and cooling system device once a month to be on the safe side of things.
I started doing this a few years ago after my heating and cooling device broke down as a result of not changing the air filter enough. This yearly change was recommended by my local heating and cooling system specialist from the local heating and cooling contractor here in my local part that I use for all of my heating and cooling system needs. It was a really great idea!