Breathe Right Large Clear nasal strips are breathing aids for your nightly routine. They lift and open your nasal passages to help you breathe better so you can sleep better. Use them to reduce nasal congestion due to cold, allergies, or a deviated septum and help reduce or even stop snoring due to nasal congestion altogether. Breathe Right nasal strips use 3M technology for comfortable fit and removal and they open your nose up to 38 percent more vs. decongestant sprays alone.