As a shielding household we decided to try this mask as it had great specs and looked good too. Great seal, lightweight, feels robust and trustworthy. Great communication from Stealth too. We love it so much, we're buying the other one too. It took my son a bit longer to get used to it, as he felt it was slipping down, but it isn't, and the seal of the internal housed mask was still great. He says once he got used to that he loves it.