The GP has a good point - I was about to write a long HN reply about being able to sort or show the “best” masks. Saw the “list doesn’t show scores” on mobile led me to this comment.

As a consumer, when I land on that site, “what’s the best mask I should buy” (protection level, budget, comfort, local/globally made). If it’s not clear on mobile, it’ll be pretty hard to get non-tech people to stay on page for more then 10s or funnel them to the page you want.

Even with "desktop mode" enabled on mobile (android chrome) I still see only one column. You can click in for more information but it is pretty useless as an interface.