What does MERV stand for in air filtration?

MERV stands for Minimum Efficiency Reporting Value. This standard is crucial in the field of air filtration as it quantifies the effectiveness of air filters in capturing particles of different sizes. The MERV rating system ranges from 1 to 20, where higher numbers indicate greater filtration efficiency. Filters with a higher MERV rating are capable of capturing smaller particles, making them more effective in improving indoor air quality.

This rating is particularly important for HVAC systems and building codes, as it helps consumers and professionals make informed decisions about which air filters to use for specific applications, ensuring better air cleanliness and health outcomes. Understanding MERV ratings enables users to not only comply with industry standards but also maintain efficient system operation and reduce energy consumption.