A lot of popcorn ceilings mounted as late since the mid-80s might contain asbestos, so before starting this challenge, connect with an asbestos professional or take a look at the area working with an EPA-authorised test package (the sample collected with the package needs to be mailed to a lab http://emilianofgebw.collectblogs.com/19419956/the-2-minute-rule-for-average-cost-to-remove-popcorn-ceiling