Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_38 (performance VARCHAR, usage VARCHAR, class VARCHAR)
### Question:
Which Performance has a Usage of hepa and a Class of h14?
### Answer:
SELECT performance FROM table_name_38 WHERE usage = "hepa" AND class = "h14"