Respironics Wisp Nasal Mask review and features. The Wisp is a hybrid CPAP mask that combines nasal pillow comfort with the performance, compact design and open field of vision of a nasal mask. The Wisp CPAP mask is highly rated for comfort. If you have any questions or comments, please ask us at Questions@thecpapshop.com. For more information on the Respironics Wisp Nasal CPAP Mask, click or call us at (866) 414-9700.