Transcription of MERV Rating Chart - mechreps.com
1 merv Rating CHARTS tandard Minimum Efficiency Reporting ValueDust Spot EfficiencyArrestanceTypical Controlled ContaminantTypical Applications and LimitationsTypical Air Filter/Cleaner Type20n/an/a< pm particle sizeCleanrooms> eff. On . pm Particles19n/an/aVirus (unattached)Radioactive Materials> eff. On .30 pm Particles18n/an/aCarbon DustPharmaceutical Man.> eff. On .30 pm Particulates17n/an/aAll Combustion smokeCarcinogenetic Materials> eff. On .30 pm Particles16n/ pm Particle SizeGeneral SurgeryBag Filter- Nonsupported 15>95%n/aAll BacteriaHospital Inpatient Caremicrofine fiberglass or 1490-95%>98%Most Tobacco SmokeSmoking Loungessynthetic media, 12-36 in. deep, 6-12 pockets1389-90%>98%Proplet Nuceli (Sneeze)Superior Commercial BuildingsBox Filter- Rigid Style Cartridge Filters 6 to 12" deep m ay use lofted or paper >95% pm Particle SizeSuperior ResidentialBag Filter- Nonsupported Legionellamicrofine fiberglass or 1160-65%>95%Humidifier DustBetter Commercial Buildingssynthetic media, 12-36 in.
2 Deep, 6-12 pocketsLead Dust1050-55%>95%Milled FlourBox Filter- Rigid Style Cartridge Filters 6 to 12" deep m ay use lofted or paper EmissionsHospital Laboratories940-45%>90%Welding Fumes830-35%>90% pm Particle SizeCommercial BuildingsPleated Filters- Disposable, extended surface area, thick with Mold Sporescotton-polyester blend media, cardboard frame725-30%>90%Hair SprayBetter ResidentialFabric ProtectorCartridge Filters- Graded density viscous coated cube or pocket filters, synthetic media6<20%85-90%Dusting AidsIndustrial WorkplaceCement DustThrowaway- Disposable synthetic panel <20%80-85%Pudding MixPaint Booth Inlet4<20%75-80%> pm Particle SizeMinimal FiltrationThrowaway- Disposable fiberglass or synthetic panel <20%70-75%Dust MitesResidentialWashable- Aluminum MeshSanding Dust2<20%65-70%Spray Paint DustTextile FibersWindow A/C UnitsElectrostatic- Self charging woven panel <20%<65%Carpet Fibers
