How much do your filters cost? Boostopia April 28, 2021 14:59 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. Related articles Can I cancel at any time? How much is shipping? How does Second Nature work? Will I be charged tax? How does Second Nature charge me? Comments 0 comments Article is closed for comments.