During AC service in Yuma, AZ, inspecting the HVAC unit’s filter, especially if it hasn’t been checked in the last few months, is essential. Dust particles that accumulate in the filter can harm your system if they make their way inside. Residential systems typically use filters rated at MERV 7-12 to eliminate airborne contaminants.
The higher the MERV ratings, the smaller the pores that allow air to pass through your furnace’s filter. The smaller pores could cause more airflow resistance than the system was designed to handle, which makes it less efficient. This decrease in airflow could create the issues the filter was intended to address.