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Designed with 3M's exclusive Filtrete 3-in-1 technology to trap unwanted air particles while allowing cleaner air to flow through Attracts microscopic particles such as smoke, coughing and sneezing, bacteria and viruses - and large particles, including lint, house dust and pollen 1900 MPR has a rating of MERV 13 International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings and language of the product, labelling or instructions. › See more product details; Product description Your home should be your sanctuary, starting with the air you breathe. Filtrete premium allergens, bacteria and virus air filters help trap unwanted particles from your household air and contribute to a cleaner and fresher environment. By proactively absorbing dust, bacteria, viruses and allergens, these high-performance filters help improve the air quality of your home.; Product description Your home should be your sanctuary, starting with the air you breathe. Filtrete premium allergens, bacteria and virus air filters help trap unwanted particles from your household air and contribute to a cleaner and fresher environment. By proactively absorbing dust, bacteria, viruses and allergens, these high-performance filters help improve the air quality of your home.; Your home should be your sanctuary, starting with the air you breathe. Filtrete premium allergens, bacteria and virus air filters help trap unwanted particles from your household air and contribute to a cleaner and fresher environment. By proactively absorbing dust, bacteria, viruses and allergens, these high-performance filters help improve the air quality of your home.