Which  Performance has a Test Standard of bs en779, and a Particulate size approaching 100% retention of >2µm, and a Class of f6?
CREATE TABLE table_name_39 (performance VARCHAR, class VARCHAR, test_standard VARCHAR, particulate_size_approaching_100_percentage_retention VARCHAR)
SELECT performance FROM table_name_39 WHERE test_standard = "bs en779" AND particulate_size_approaching_100_percentage_retention = ">2µm" AND class = "f6"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_39 (performance VARCHAR, class VARCHAR, test_standard VARCHAR, particulate_size_approaching_100_percentage_retention VARCHAR) Question: Which  Performance has a Test Standard of bs en779, and a Particulate size approaching 100% retention of >2µm, and a Class of f6? [/INST] SELECT performance FROM table_name_39 WHERE test_standard = "bs en779" AND particulate_size_approaching_100_percentage_retention = ">2µm" AND class = "f6" </s>