LM991 - Respirator without Valve KN95(GB2626-2006)

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LIFAair  LM991 High-performance respirator without valve

This is a new age in mask technology.

Witnessing the profound impact that industrialization, greenhouse gases, pollution, and other climate-changing effects have on our health today, it has become a priority to develop products in healthcare for the wellness and well being of families around the world. 

What are we protecting you from?

  • Everyday pollutants
  • Pollen 
  • Smog
  • Allergens
  • Sensitivities to change in temperature and environments

Introducing the LM991 high-performance respirator without valve otherwise known as a passive filtering mask. Ergonomically-designed to fit the contour of your face, this high-grade Class A mask offers efficient filtration through 3 levels of protection.


Pre-filter layer (non-woven):

Filters bigger particulate matter including dust

High filtration efficiency Melt Blown layer

Traps PM2.5 and finer particles including haze and other environmental and job-related emissions.

 Inner Lining (non-woven):

Soft and comfortable for easy breathing



Available : standard box for 10 pcs.



Air quality
index AQI
Air quality rating Wear time
(Accrual calculations)
0-50 Good
51-100 Moderate
101-150 Unhealthy for sensitive groups 40 hours
151-200 Unhealthy 32 hours
201-300 Very unhealthy 20 hours
>300 Hazardous 8 hours