Rsenr Electric Wearable Air Purifier Maskes,Air Supply,Breathe Easier,With HEPA Filter,for Dust Work,Painting, Machine Polishing, Welding and Other Work Protection…

Whoever in Shenzen designed this product has done the rest of us a great service because the device is affordable, reliable and amazingly effective. It combines commodity components like a high-velocity fan and repurposed KN-95 face masks in a simple, generously equipped package that works extremely well. I used a portable air quality sensor to test the effectiveness of this filter earlier this week when Philadelphia, where I live, was blanketed for several days with dangerously dense smoke from forest fires in Quebec to our north. Before trusting my lungs to this little filter, I did a test by filling a Ziploc bag outdoors with smoky air. I put a portable air-quality detector in the bag and measured PPM 2.5 of about 280, which would’ve made me choke if I hadn’t been wearing a different (bulky but known-safe) respirator to conduct the test. I inserted the hose from this $40 powered filter into the Ziploc bag and zipped it mostly shut. Within 60 seconds or so, the bag had been completely flushed as the PPM dropped to zero. Sorry I didn’t record a video but I was more concerned with my safety and hadn’t been planning to post a review. With this unit I was able to do hours of work outside during the worst of the smoke storm, and the only time I smelled the wretched stuff was when I went outside having forgotten to turn on the fan. I had to keep the power level at two and sometimes three (full power) to keep all traces of smoke away from my lungs, especially after the wind picked up. This little thing was amazing from start to finish, and I found it far easier to breathe with the filter’s positive pressure compared to using my own effort to suck air through a conventional mask. I’m sad to need it, yet I’m thrilled to have found a reliable source of breathable air.

The apparatus works exactly as described. I prefer to use the second level of air flow because the battery will not last the longest on the third level of flow. The mini air filter that goes in the unit is genius and lasts. The air hose is designed to stay strait and not kink, kinking will greatly reduce air flow. Unit is included with a lanyard and a arm band with Velcro attachments. I prefer the arm band to keep the box as far away from the weld area as possible. If you plan on using this a whole ten hour shift you should consider buying two as the battery is not removable. A worthy and life saving product. FLUX CORE SMOKE WILL REDUCE THE TIME RATING OF EACH REPLACEABLE FILTER, REPLACE WHEN SEVERELY DISCOLORED OR AIR FLOW IS RESTRICTED. Play Safe. J.C.

I got it on a massive discount, My hopes were almost nonexistent and I’m still let down Don’t spend 40$ on this, it’s junk

This works pretty well; BUT I agree with other reviews that the hose does kink easily which stops air flow. The hose is just too malleable. Also, the mask does allow some fragrance in if I'm not careful to keep it tightly against the face; but the air flow usually would prevent that coming in if it weren't hindered by kinking. The biggest problem for me has been that the velcro doesn't stay on so I can use the arm band. I can't use the lanyard because I have a neck problem. I do like it enough to try to fix it. I'm replacing the velcro on the unit and I'm going to try to use a CPAP hose which is a bit more rigid, but not too much. I hope these improvements work. If it does, and if the company had made these improvements, my rating would be better.

wish i got rich of this invention! great product!