Ambi Pur 3volution Air freshners 5.0 5.0/ 5 1 (1) Write your Review Ambi Pur 3volution is cleverly designed to automatically change between three complementary scents every 45 minutes, which mean you’ll keep on noticing the high quality fragrances again and again for up to 90 days. That’s one whole season of noticeable freshness!