TASK DEFINITION: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
PROBLEM: product did not work with my iPhone 7 plus so disappointed in the product

SOLUTION: ... did not work with my iPhone 7 plus so disappointed in the

PROBLEM: This product sucked and it only last less than two weeks. I bought it for my classroom since the school do not supply. I missed the window to send it back. Very disappointed.

SOLUTION: It was supposed to be quality. Which turned out to be trash.

PROBLEM: Works just fine but a separate HEPA filter should be offered. The activated charcoal is washable but the HEPA filter is not. To get a replacement for it, one has to also buy the charcoal thus running up the cost.

SOLUTION:
Works just fine but a separate HEPA filter should be offered.