The PixieDust Breathable Face Mask with Valves ventilator is a pretty cool mask for under $10.
For one, you get a mask with two double air breathing valves and then you get a total of five filters, in which one is already installed.
Another positive, is the fact that similar masks only offer two filters, but you get five total.
The breathing valves help eliminate heat and moisture and reduces carbon dioxide accumulation and more.
Overall, the PixieDustBreathable Face Mask is recommended!
