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 How often am I charged? Can I cancel at any time? How much is shipping? Why Was My Card Charged on My New Subscription? Will I be charged tax? Comments 0 comments Article is closed for comments.