How to make filters in the product catalog from the point of view of SEO?

Question

Search Engine Optimization

Good afternoon.
I have a question. There is an online store ... I made filters in it.
Filters work through a GET request so that you can give links to specific filters applied ... For example, like this: Metal Venetian masks for men Yandex ran through these filters and in various combinations found 30K pages where there used to be 2 dozen ... as far as I understand, this is bad for SEO, because the pages have almost the same content. How to do it right?
Now I limited myself to the fact that if filters were applied, then the list of products is surrounded by the noindex tag, is this correct? or what is the best way to do it?

Answer 1

Use <link rel="canonical" href="http://sample.tld/real/path/page.ext">in the header of the page. Read more: support.google.com/webmasters/bin/answer.py?hl=en&answer=139394