MERV 13: The Sweet Spot
A MERV 13 filter catches over 90 percent of fine particles, including most wildfire smoke. It works in most home HVAC systems without hurting airflow.
Wildfire Smoke Filter Upgrades in Sacramento
Wildfire smoke hits Sacramento every year. The right HVAC filter can cut indoor smoke levels before they reach harmful levels.

Sacramento sits in the Central Valley. Wildfire smoke from the Sierra Nevada and Northern California flows into the valley each summer and fall. The right HVAC filter stops most of those particles from reaching your living space. But not every system can handle a high-rated filter. Fresh Air checks your system first and installs a filter that fits your unit.
A MERV 13 filter catches over 90 percent of fine particles, including most wildfire smoke. It works in most home HVAC systems without hurting airflow.
Higher-rated filters block more smoke but can restrict airflow in standard systems. Fresh Air checks your blower and duct size before recommending a MERV 16 or HEPA setup.
A 4-inch or 5-inch filter cabinet holds more media. This lets you get MERV 13 or higher protection with less pressure drop. Fresh Air can install this cabinet at the same time as a new unit.
MERV 13 is the highest rating most home HVAC systems can handle without airflow issues. It stops most PM2.5 particles, which are the tiny particles in wildfire smoke that cause the most harm to lungs. For most Sacramento homes, MERV 13 is the best upgrade. Fresh Air installs a MERV 13 filter at every new HVAC job as a standard step.
MERV 16 and true HEPA filters stop more particles but need more air pressure to push air through. A standard blower may not handle that load. This can strain the motor and cut system life short. Fresh Air sizes the blower and duct work before going above MERV 13. If a deep-media cabinet is needed, Fresh Air can add one during the install.
Not in most cases. Fresh Air checks your blower size and duct layout first. If your system can handle it, a MERV 13 is a safe and effective upgrade.
Check the filter monthly during heavy smoke events. A clogged filter restricts airflow and can damage your system. Fresh Air installs filters that are easy to swap.
Yes. Fresh Air can assess your system and add a deep-media filter cabinet or an electronic air cleaner. Call (916) 416-8181 for a free estimate.
Call Fresh Air at (916) 416-8181 or visit the contact page. We serve Sacramento, Elk Grove, Folsom, Roseville, Granite Bay, and more. CSLB 945361, since 2009.