One important note: While the respirator’s exhalation valve makes it easier for the wearer to breathe — a good thing when dealing with hazardous air quality — it renders the mask useless in ...

During a podcast with Nikhil Kamath, Bryan Johnson walked out due to concerns about poor air quality, which he equated to ...

Razer said the "N95-grade" mask had 99% BFE (bacteria filtration efficiency) and could filter 99% of air particles that are ... 95% of airborne particles. But tech reviewer Naomi Wu discovered ...

The Federal Trade Commission is sending out checks to fully reimburse everyone who bought Razer Zephyr air purifier masks, which were falsely labeled during the COVID-19 pandemic as having N95 ...