The "Dana" was created in response to trying to meet the needs of several family members and friends who were having extra struggles wearing face masks. Many of whom had compounding symptoms like asthma, claustrophobia and extreme anxiety. This has also been a great option for those who are required to wear masks while exercising, and are well distanced from other exercisers.
Though the "Dana" provides sufficient protection for many, and has helped those who weren't able to wear most masks before, it certainly isn't sufficient for anyone with COVID symptoms or for those at higher risk. If you are in one of those groups, the "Olsen" mask - which comes with a filter pocket - would be a great option.