this review title is: too hot but it does work and the content is: we live in south korea which has a lot of pollutuon i have asthma and allergies and if i wear a vog mask it does seem to help but i find riding a bike or even walink on a warm day too hot in this mask i sweat and feel lile i cannot get enough air i desperately need another alternative to this mask.there are other information for this review, one is this reviewer did not purchase it and the other is 0 people think this review is helpful.