Review on 🪟 Adjustable Dust Proof Activated Valve with Protection Filtration by Jorge Kehayas

The design is fun. Both one of the inner layers and the "carbon" filter block the breathing valve, rendering it unusable. Which "carbon" compound are we talking about anyway? What should he achieve? The straps are too small, so the ears stick out; I look like Dumbo. It would be better if the straps go all over the head and not just hanging around the ears. I'll probably never wear it and don't want to worry about returning it.