Air Pollution Mask Anti-dust Fashion Sport Breathing Carbon Bike Mask Breathing Filter Valve for Adult


Availability: 1 in stock

SKU: 4000815984407 Category:



Outer Diameter: 4 * 3.5cm

Inner Diameter: 1.8cm

Weight: 4g

Compatible: majority of Dust Masks available in the market

season:Spring, summer, fall, winter

Function: Anti Virus / Dustproof / Windproof / Anti-Smog / Anti-PM2.5

Gender:Unisex adult


Bag Feature:

1. 100% brand new and high quality.

2.Simple operation and easy to use.

3. Add breathing valve accessories to isolate the smog and make the exhalation smooth.

4. Compatible with majority of Dust Masks available for adult in the market.

Packaged include: A pair of valves

Note: 1. Due to the screen difference, the colour may be a little different from what you expect, please allow it.


Why is it called 2.5?

The 2.5 in PM2.5 refers to the size of the pollutant in micrometers. Bear with us here while it gets a bit mathematics-y! Micrometers have this symbol: µm and are equivalent to 0.001 millimeters. The smallest thing that the average human eye can perceive is about 0.1 millimeters, which is around the same width as a human hair. So in order for us to see something as incredibly small as a micrometer, we need to use powerful microscopes.

What are the negative effects of exposure to PM2.5?

Depending on how healthy you are in general, PM2.5 will have different long and short term negative health effects. When exposed to levels of PM2.5 between to moderate – hazardous range, one may experience the following effects:

  • shortness of breath
  • eye, nose and throat irritation
  • excessive coughing and wheezing
  • diminished lung function and lung disease
  • diminished heart function, sometimes resulting in heart attack
  • asthma attacks
  • death

PM2.5 also damages the environment by increasing acidity in the soil and water bodies. Which in turn affects their ability to produce food and support life.


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