Please choose the correct solution to the question: To keep your air conditioner running smoothly,

Solution1: Take out the filter and wash it in warm soapy water.  Rinse and let dry.  Do this at least once a month during the summer.

Solution2: Take out the filter and wash it in warm soapy water.  Rinse and let dry. Do this at least once a day during the summer.

Answer format: solution1/solution2