G4 and G class filters (G2, G3..) are used for air filtering from coarse particles gases in offices, public buildings and, with other filtration systems, in hospitals and medical facilities as pre-filters.
Filters are produces in different sizes depending on particular cases.
Filter Class: G4
Filter Frame: Galvanized Metal/ cardboard
Filter Media: G4 filter synthetic media
Average Efficiency: ≥90%
Max Working Temperature: 70 °C
Relative Humidity: 95%