@44tankie Dr. Falkinham warns against cool mist humidifiers, which sadly this Honeywell Reflection is. Even if you use previously boiled water to fill the tank and you sanitize weekly, personally, I'd worry that NTM and possibly pseudomonas would colonize the reservoir and internal surfaces that you cannot clean.

For your own comfort you might wish to review Dr. Falkinham's advice about what humidifiers he considers safe and why, starting on page 10 of the attached document. He answers questions on the NTMinfo.org website, maybe you can write to him there.