It's okay, on the road for about a month. The quality is normal, the valves of filters are triggered on the breath, as it should be .., but for women will not work, T. K. Behind is fixed on Velcro, and I personally hang out, there will fit another my neck, therefore, it does not fit tightly. My husband approached normally. So, look for yourself: If you have a big head on the fat neck, then take, there are no complaints about quality.