@moesilverio, I tried the Airtouch F20 to replace an AirFit F20 but eventually switched back to the AirFit F20 because the sleep medicine technician told m the foam seal on the Airtouch breaks down easily and only lasts for about 1 month. I don't have a silicone allergy but I do get the CPAP nose which bothered me a lot. I discussed it with my Mayo Sleep medicine tech on my annual follow up appointment and she told me about a CPAP Comfort Cover and gave me their website. I ordered a couple of them and have been using them for the past couple of years. They come 2 to a pack and I wash them in a small laundry bag which makes it easy for cleaning. They make them for a variety of different masks - here's one for the AirFit and AirTouch F20 if you want to see what they look like - https://cpapcomfortcover.com/fits-airfit-and-airtouch-f20-full-face-mask/

For a CPAP skin/nose moisturizer I really like the Roezit brand with the Aloe Vera and Emu oil base. I first found it at my local medical supply store but they don't always have it. The sleep therapist told me the brand really doesn't matter as long as it doesn't contain petroleum based oils. Here's the product details - https://cornermedical.com/product/roezit-dermal-care/ I'm sure any similar cream or moisturizer will work for you.