I haven't had it and as an asthma sufferer with various other allergies, I don't want it as I have no idea what it would do to me. Asthma attacks, for me are rare but terrifying. Any kind of airborne irritant has me wheezing and a severe attack (when my inhalers stop working) scare the dooh dahs out of me and all around me by my extreme reaction. How those medical staff have coped, watching folks fighting for their lives, day in and day out leaves me full of admiration for them. I passed a chap, as I walked into the supermarket the other day and he looked at my mask, shook his head and said "F***ing nonce!" and walked on shaking his head. It takes all sorts to make a world! Stay safe (in your own chosen way) everyone.