How much do your filters cost? Boostopia August 21, 2019 17:08 Updated Follow Filters start at $12, but prices vary by the grade and quantity of filters you need for your home. For an exact quote, go to our Home Page and click Start Free Trial. Related articles Can I cancel at any time? How often am I charged? How much is shipping? Will I be charged tax? Why Was My Card Charged on My New Subscription? Comments 0 comments Article is closed for comments.