MERV Rating Chart: Air Filter Comparison (1-16) | TaskHolt
MERV Rating Chart (Air Filter Comparison)
A MERV rating chart comparing what each air-filter rating captures, from MERV 1 to MERV 16, with the best use and airflow notes.
MERV rating comparison
| MERV | Captures | Best for |
|---|---|---|
| 1-4 | Large dust, lint, carpet fibers | Minimum protection (window A/C) |
| 5-7 | Mold spores, dust, hairspray | Basic homes |
| 8 | Pollen, dust mites, lint | Standard residential |
| 11 | Pet dander, fine pollen, smog | Allergies & pets |
| 13 | Smoke, bacteria, virus carriers | Sensitive households (highest most homes use) |
| 14-16 | Fine particles, most bacteria | Hospitals, labs (needs compatible system) |
Higher MERV captures more but restricts airflow. MERV 13 is the practical ceiling for most home HVAC; going higher on a thin 1 in filter can strain the blower. Check your unit’s maximum MERV.
Frequently asked questions
What MERV rating is best for home use?
MERV 8 covers basic dust, MERV 11 is ideal for allergies and pets, and MERV 13 is the highest most homes should use. Higher ratings can restrict airflow.
Is MERV 13 too restrictive?
Not for most modern systems, especially with a thicker 4-5 in filter. On a thin 1 in filter it can reduce airflow — check your HVAC manufacturer’s maximum.