Filters go by MERV rating. The higher the number the better the filter is at capturing small particles.
Your hvac system isn’t going to be rated for a specific MERV rating. Instead they are rated by air flow. Air flow is going to be affected by your duct work and other factors.
The best is advice is to stick around the 8 MERV rating or lower. Any higher and you may risk damage to the blower motor.
If you want to be sure and know for certain what the best filter size is then you’re best dealing with an hvac company. They can do a static air pressure test. They’ll know based off that figure how much you can reduce air flow (by virtue of the air filter) before the blower starts struggling and therefore select a MERV rating that’s aligned with your current air flow restrictions.
this also makes sense, hmm.
is the best bet to examine the blower specs and find a corresponding filter grade?
where’s that Alec guy when you need him…
Filters go by MERV rating. The higher the number the better the filter is at capturing small particles.
Your hvac system isn’t going to be rated for a specific MERV rating. Instead they are rated by air flow. Air flow is going to be affected by your duct work and other factors.
The best is advice is to stick around the 8 MERV rating or lower. Any higher and you may risk damage to the blower motor.
If you want to be sure and know for certain what the best filter size is then you’re best dealing with an hvac company. They can do a static air pressure test. They’ll know based off that figure how much you can reduce air flow (by virtue of the air filter) before the blower starts struggling and therefore select a MERV rating that’s aligned with your current air flow restrictions.