Need new ac filters

For the past couple of weeks, I have been looking for a new arena to buy filters for my HVAC system. I don’t suppose why I am having such a hard time finding the right filters, however it seems appreciate everywhere I look doesn’t carry the brand or size that I needed! When I first had my HVAC system installed the HVAC business gave myself and others a big box full of filters, then the box of filters lasted myself and others about various years and now I have no method where to look for them. I very don’t want to have to call the HVAC supplier that installed my HVAC system because I suppose they are going to want to come out to the new home and look at my HVAC system. When the HVAC supplier comes out to the new home they regularly charge myself and others so much cash, even if they don’t do any work. So, I am going to try and avoid calling them as much as possible. However, I am afraid calling the HVAC supplier is what I am going to have to do. It has been about many weeks since I last changed the filter in my HVAC system and I can feel the air quality being affected by it! My flu symptoms have been getting worse and I suppose it is because I need to change the filter in my HVAC system. I am bummed that I have to call the HVAC supplier because I suppose they are going to try and find something else that is wrong with my HVAC component to try and get more cash out of me.

Ductless mini split