HongTC Sports Masks with Activated Carbon Filter, 1 Mask Filters, 2 Breathing Valve for Running Walking, Cycling, Motorcycle…

These masks are not recommended by the CDCMasks with these one-way valves are intended for use in construction work, allowing users to breathe in filtered air and exhale warm, moist air through the valve, according to The Washington Post. These valves reduce heat and moisture inside masks, making them more comfortable to wear for long periods.But this design doesn't prevent the spread of infectious diseases. The main reason for wearing masks in the COVID-19 era is to prevent respiratory droplets from traveling into the air when a person coughs, sneezes or talks, the CDC says. But when a mask has a valve, respiratory droplets from the wearer are expelled into the air and could reach other people.

Great product. The filters need occasional replacement. The only downside is that hospitals don’t like it because of the front filters

Hummmm

This mask has just the mask and a carbon filter attached to the inside. The filter is loose and not covered. It moves as you breathe and tickles your nose and mouth. It does not come with extra filters.

Worked fine