You dont need the good ones. In fact, sometimes the good ones can damage your HVAC system. If you use 3M filters, use the red label, not the purple label.
What i was told by an HVAC guy who was at my house to fix an issue was those more expensive filters make the system work harder as the filters limit airflow and that additional workload can cause issues.
I cannot because I’m just a goofball with a mild interest in home improvement
Wikipedia says HEPA filters became commercially available in the 1950s though so anything older than that I’d bet some beer money would benefit from a less dense filter
I wouldn’t think forced air heating systems that old are too common though tbh
Uh oh, me too. I hate doing it! Plus, filters are expensive if you get the good ones.
You dont need the good ones. In fact, sometimes the good ones can damage your HVAC system. If you use 3M filters, use the red label, not the purple label.
Don’t I want a HEPA filter for better air quality, especially if I have a dog?
What i was told by an HVAC guy who was at my house to fix an issue was those more expensive filters make the system work harder as the filters limit airflow and that additional workload can cause issues.
physics wise that makes sense but modern systems should* be designed taking into account the air resistance of their specified filters
older or for any other reason more weak airflow systems probably do benefit from a less dense filter
*lol “should” means so little these days
Can you define older, or modern? Like how old is too old to have been designed for HEPA filters?
I cannot because I’m just a goofball with a mild interest in home improvement
Wikipedia says HEPA filters became commercially available in the 1950s though so anything older than that I’d bet some beer money would benefit from a less dense filter
I wouldn’t think forced air heating systems that old are too common though tbh
Nice. Thanks for the information. I’ll just keep using HEPA filters then. Speaking of which, it’s time to buy a new one. QQ
it feels like it’s ALWAYS time to replace the dsng filter
and i rent so i have to email a management company repeatedly to get it replaced 😭