KACOOL Activated Carbon Face Mask Dust Proof Pollution Respirator with Filter Cotton Sheet and Valves for Exhaust Gas, Anti Pollen, PM2.5, Facial Mask for Running, Cycling, Outdoor Work - Black

Got the product quickly. Build quality of the mask is ok but the fitting of the vents is below average (it is made in china) Also the exhaust air vents seem to be only for show. When i turned the valve to open, the left side air vent popped out into my hand. Was able to reattach it but it seems to be very loose and needs to be refitted practically everytime i have to wear the mask.There seems to be a small hole near the vent to let out your exhaled air. While it doesnt fog the glasses it also retains quite a bit of the exhaled air thereby making one feeling naseous after some time. Only positive seems to be that the reverse would be true as well, in that it will not allow a lot of exhaust smoke/smog/pollutants inside while inhaling.The velcro attachment is quiet good but it would have been better if the velcro portion was a bit longer so that one could use the optimum length for a comfortable fit. Overall the product is average and seems quiet costly. My personal opinion is that it would be better to buy lesser priced masks which come with removable/changeable carbon filters.

Pathetic quality of product even the quality of roadside product is much better than this not worth even for 50rs n Da material used is of poorest quality it has foul smell as well never buy

This pollution face mask is very useful for me as i am travelling daily for 4-6hrs on bike.It is made with good quality of cotton sheet and it doesnt cause any pain while using it

It is a very useful product. It works a lot when you bike it. This dust prevents soil from going into the mouth.

expensive , product is not upto the mark.

Nice Mask its doesn't even feels like that i m wearing it.. Cause some mast affects us in breathing but this one allows me to breathe freely

Valve is not firmly fitted.

I don't recommend to buy it, very poor qaulity. Not worth to buy on this price