The Protekt GP95+ reusable face mask comes with 7 layer Germ Shield Technology that filters out more than 95% of bacteria (>3µm) and 95% of particles (>0.3µm). Despite such high filtration efficiency, it's super breathable owing to the superior fabric and construction utilised. It comes with an adjustable earloop that can be used to custom fit the mask to your unique face shape. The correct size of the mask may be selected by measuring your face against the dimensions of the mask. The GP95+ mask is reusable and can be gently hand washed up to 30 times.