The Microparticle Performance Rating (MPR) system rates an Air filter’s ability to capture the smallest airborne particles—from 0.3 to 1 µm in size from the air passing through the filter.
performance art | Grammy Award for Best Female Pop Vocal Performance | Royal Variety Performance | performance | Performance | Elo rating system | Naval rating | Motion Picture Association of America film rating system | Royal Command Performance | Performance art | Historically informed performance | Command Performance | Performance Today | Grammy Award for Best Rap Performance | Audi Performance and Racing | Pride of Performance | Performance Space 122 | Performance (film) | performance-enhancing drugs | Performance attribution | Marvel Rating System | Laurie Anderson (performance artist) | Holley Performance Products | Gross vehicle weight rating | Grammy Award for Best R&B Instrumental Performance | Grammy Award for Best Male Pop Vocal Performance | Athletes' Performance | X rating | Performance Racing Network | performance measurement |