I'm using a Philips Dream Station Auto CPAP machine with an oronasal mask for almost a year now because I have obstructive sleep apnea with an AHI of 31.4. I've been hearing about this black fungus issue caused by prolonged mask use and I'm not sure if I should keep using it. I was diagnosed with Covid back in August 2020, but I was asymptomatic and recovered fine. Can you advise me on whether I should continue using the CPAP machine right now?