Always refer to the manufacturer’s specifications. But a general rule of thumb is:
- If used during smoke season, 3 months.
- If during regular usage, 6 month.
Additional details on MERV 13-A filters which for sure will are the ones that last that long.
Always refer to the manufacturer’s specifications. But a general rule of thumb is:
Additional details on MERV 13-A filters which for sure will are the ones that last that long.