hum replacement heads April 21, 2022 12:50 Updated hum smart toothbrush offers its own replaceable heads. Brush heads are available wherever hum is sold or directly from our store. Related articles Replacing the brush heads How do I modify or cancel my subscription? Can hum smart toothbrush be used by children? Where to find the Serial Number of your hum smart toothbrush? Recycling your hum smart brush Comments 0 comments Article is closed for comments.