Which Particulate size approaching 100% retention has a Usage of semi hepa and a Class of h12?
CREATE TABLE table_name_47 (particulate_size_approaching_100_percentage_retention VARCHAR, usage VARCHAR, class VARCHAR)
SELECT particulate_size_approaching_100_percentage_retention FROM table_name_47 WHERE usage = "semi hepa" AND class = "h12"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_47 (particulate_size_approaching_100_percentage_retention VARCHAR, usage VARCHAR, class VARCHAR) Question: Which Particulate size approaching 100% retention has a Usage of semi hepa and a Class of h12? [/INST] SELECT particulate_size_approaching_100_percentage_retention FROM table_name_47 WHERE usage = "semi hepa" AND class = "h12" </s>