MERV RATING CHART
Efficiency Reporting Value Dust Spot Efficiency Arrestance Typical Controlled Contaminant Typical Applications and Limitations Typical Air Filter/Cleaner Type 20 n/a n/a < 0.30 pm particle size Cleanrooms >99.999% eff. On .10-.20 pm Particles 19 n/a n/a Virus (unattached) Radioactive Materials > 99.999% eff. On .30 pm Particles
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www.mechreps.com FORMULAS & CONVERSIONS …
www.mechreps.com3 0 4 0 2 0 1 5 1 0 5 0 2 5 5 10 15 20 4 5 5 0 55 60 90 20 25 530 45 50 55 T 60 WETBULB E M P E R A T U R E - ° F 65 70 75 85 This chart was constructed using data from the “Thermodynamic Properties of Moist Air”
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www.mechreps.com2 Stock Catalog & Price List Terms and Conditions PriCeS All prices listed are F.O.B. our warehouse plus applicable taxes. Prices are subject to change without notice. TermS
MERV Rating Chart - mechreps.com
www.mechreps.comLegionella microfine fiberglass or 11 60-65% >95% Humidifier Dust Better Commercial Buildings synthetic media, 12-36 in. deep, 6-12 pockets Lead Dust 10 50-55% >95% Milled Flour Box Filter- Rigid Style Cartridge Filters 6 to 12" deep m ay use lofted or paper media. Auto Emissions Hospital Laboratories 9 40-45% >90% Welding Fumes
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