DescriptionAre you looking for a professional, yet affordable mask filter insert? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional mask filter insert must meet you needs. It is one of the best choices for you.Features- Color: White.- Material: Superfine fiber. - Size: 11.00X6.00X0.10cm/ 4.32X2.36X0.04in.- It can effectively prevent pollutant like dust, small particle, PM 2.5, fog from entering respiratory tract. - The filter piece can be easily inserted into mouth mask, very practical in use. - It can give you protection and it will make you feel more secure when in outdoor or in other dusty or haze position. - The must-have essentials to fresh the air of your breathing, and it can lengthen the lifetime of your masks. - Made of high-quality material, it is very safe and comfortable to use in your daily life.
