Table 2 Comparison between commercial PWGs and the experimental test bench.
From: Experimental verification and comparative analysis of peak expiratory flow measuring devices
Characteristic | Commercial PWGs | System in this study |
|---|---|---|
Error levels | Low (0.2%- 0.5%) | Low (1%−1.5%) |
Safety and ease of use | High, extensively validated | High, limited validation |
Cost | High | Moderate |
Design | Typically single cylinder | Dual-cylinder |
Experimental flexibility | Limited | High, multiple configurations |
Breathing pattern simulation | Standardized, realistic but limited | Versatile, patient-specific and pathological |
