There is a user guide.pdf
Top of page 9 reads:
For S9: Select 'Pillows'
For other devices: Select 'SWIFT' (if available), otherwise
select 'MIRAGE' as the mask option.
The mask system does not contain BPA, PVC, DEHP or phthalates.
This product is not made with natural rubber latex.
The manufacturer reserves the right to change these specifications
I can't post a link or I would.