What is back pressure for purifier?

Back pressure in a purifier refers to the resistance encountered by the flow of air or gas as it passes through the purification system. This resistance can result from filter clogging, design limitations, or other obstructions, leading to decreased efficiency and performance of the purifier. High back pressure may indicate the need for maintenance or replacement of filters to ensure optimal operation and air quality. Monitoring back pressure is crucial for maintaining the effectiveness of purification systems.